ACOUSTIC CONTROL INDUCTION SYSTEM (ACIS)

Transcription

1 VSV for ACIS SFI (1GRFE) ACOUSTIC CONTROL INDUCTION SYSTEM (ACIS) ACOUSTIC CONTROL INDUCTION SYSTEM (ACIS) ONVEHICLE INSPECTION 1. INSPECT INTAKE AIR CONTROL FUNCTION Intake Air Control Valve SF49 SF1Z001 A23225 (a) (b) (c) (d) (e) (f) Remove the Vbank cover. Connect the handheld tester to the DLC3. Perform the ACTIVE TEST, then check that the actuator rod operates. Start the engine. Check that the VSV for ACIS is ON under the following conditions: Depressing the accelerator pedal to 60% accelerator opening angle. Racing the engine above 4,700 rpm. Check that the VSV for ACIS is OFF under the following conditions: The engine idling. Release the accelerator pedal from the condition of step (e). 3566

2 SF50 SFI (1GRFE) ACOUSTIC CONTROL INDUCTION SYSTEM (ACIS) 3way Connector A INSPECT INTAKE AIR CONTROL VALVE (a) Remove the Vbank cover. (b) Using a 3way connector, connect the vacuum gauge to the actuator hose. (c) Start the engine. (d) While the engine is idling, check that the vacuum gauge needle momentarily fluctuates up to approx kpa (300 mmhg, 11.8 in.hg). (The actuator rod is pulled out.) (e) Rapidly and fully depress the accelerator pedal and check that the vacuum gauge needle points to 0 kpa (0 mmhg, 0 in.hg). (The actuator rod is returned.) (f) Remove the vacuum gauge, and connect the vacuum hose to the actuator. (g) Reinstall the Vbank cover. 3. INSPECT INTAKE AIR SURGE TANK Inspect the diaphragm. (1) Check that the lever moves when a vacuum of 26.6 kpa (200 mmhg, 7.9 in.hg) is applied with the MI TYVAC (handheld vacuum pump) on. (2) Check that the vacuum of 26.6 kpa (200 mmhg, 7.9 in.hg) is sustained for 1 minute in the above state. A23227 Ohmmeter Continuity 4. INSPECT VSV FOR ACIS (a) Inspect the VSV for on open circuit. Using an ohmmeter, check that there is continuity between each terminal. Resistance: 33 to 39 Ω at 20 C (68 F) A23228 Ohmmeter No Continuity (b) Inspect the VSV for ground. Using an ohmmeter, check that there is no continuity between each terminal and the body. A

3 SFI (1GRFE) ACOUSTIC CONTROL INDUCTION SYSTEM (ACIS) SF51 Air (c) Inspect VSV operation. (1) Check that air flows from port E to the filter. E Filter A23230 Air (2) Apply battery voltage across the terminals. (3) Check that air flows from port E to port F. E F A

4 SFI (1GRFE) ACC CUT RELAY ACC CUT RELAY INSPECTION 1. REMOVE ACC CUT RELAY SF55 SF1Z501 A INSPECT ACC CUT RELAY (a) Using an ohmmeter, check for continuity between each terminal. Specified condition: Terminal No. Specified condition Continuity 3 5 No continuity (b) Using an ohmmeter, check for continuity between terminals 3 and 5 when the battery voltage is applied across terminals 1 and 2. Specified condition: Continuity 3. INSTALL ACC CUT RELAY 3572

5 +B HT AF AF+ A23238 SFI (1GRFE) AIRFUEL RATIO (A/F) SENSOR AIRFUEL RATIO (A/F) SENSOR INSPECTION SF63 SF1ZC01 1. INSPECT AIR FUEL RATIO SENSOR (BANK1, BANK2 AIR FUEL RATIO SENSOR) Using an ohmmeter, measure the resistance between the terminals. Resistance: Terminal No. Resistance 1 (HT) 2 (+B) 1.8 to 3.4 Ω at 20 C (68 F) 1 (HT) 2 (+B) 5.0 to 7.5 Ω at 500 C (932 F) 1 (HT) 4 (AF) No Continuity If the resistance is not as specified, replace the sensor. E1 2. INSPECT AIRFUEL RATIO COMPENSATION SYS TEM (a) Measure the voltage between terminals of the ECM. Standard voltage: Terminal No. Condition Voltage A1A+ E1 IG switch ON 3.3V A1A E1 IG switch ON 3.0V A2A+ E1 IG switch ON 3.3V A2A E1 IG switch ON 3.0V (V) 3.3 A2A+ A2A Keep the engine speed Time A1A A1A+ Lean Rich A Air Fuel Ratio A23239 NOTICE: Connect test leads from the back side of the ECM connector. HINT: The voltage between terminals of the ECM is kept constant regardless of the voltage of the A/F sensor. (b) Connect the handheld tester to the DLC3. (c) Select DATA MONITOR A/FS B1 S1, A/FS B2 S1 and O2S B1 S2 to display the monitor. (d) Warm up the A/F sensor by running the engine at 2,500 rpm for approx. 2 minutes. (e) Keep the engine speed at 2,500 rpm and confirm that the displays of the A/FS B1 S1 and A/FS B2 S1 are similar to the illustration on the left. NOTICE: The illustration differs from the real display. HINT: The waveform of the A/F sensor is displayed only on the handheld tester. (f) Confirm that the display of the O2S B1 S2 changes between 0V to 1V with the engine speed at 2,500 rpm. 3580

6 SFI (1GRFE) ACCELERATOR PEDAL POSITION SENSOR SF65 ACCELERATOR PEDAL POSITION SENSOR INSPECTION SF1ZE01 1. INSPECT ACCELERATOR PEDAL POSITION SEN SOR (a) Connect the handheld tester to the DLC3. (b) Turn the ignition switch to the ON position. (c) Check if the voltage (ACCEL POS) of the CURRENT DATA indicates the standard value. Accelerator pedal released: 0.5 to 1.1 V Accelerator pedal depressed: 2.6 to 4.5 V (d) Check if the voltage (ACCEL POS #2) of the CURRENT DATA indicates the standard value. Accelerator pedal released: 1.2 to 2.0 V Accelerator pedal depressed: 3.4 to 5.3 V If not using a handheld tester, measure the voltage between terminals (VPA EPA, VPA2 EPA2) of the ECM connector (see page DI34 ). A REMOVE ACCELERATOR PEDAL ROD (a) Disconnect the accelerator pedal connector. (b) Remove the 2 nuts and the accelerator pedal assy. 3. INSTALL ACCELERATOR PEDAL ROD NOTICE: Avoid physical shock to the accelerator pedal assy. Do not disassemble the accelerator pedal assy. (a) Install the accelerator pedal assy with the 2 nuts. Torque: 5.0 N m (51 kgf cm, 44 in. lbf) (b) Connect the accelerator pedal connector. 3582

7 SFI (1GRFE) A/F SENSOR HEATER RELAY SF53 Engine Room R/B A/F Sensor Heater Relay A/F SENSOR HEATER RELAY INSPECTION 1. REMOVE A/F SENSOR HEATER RELAY SF1Z201 A23245 A INSPECT A/F SENSOR HEATER RELAY (a) Using an ohmmeter, check for continuity between each terminal. Specified condition: Terminal No. Specified condition 1 2 Continuity 3 5 No continuity (b) Using an ohmmeter, check for continuity between terminals 3 and 5 when the battery voltage is applied across terminals 1 and 2. Specified condition: Continuity 3. INSTALL A/F SENSOR HEATER RELAY 3570

8 SF54 SFI (1GRFE) CIRCUIT OPENING RELAY Engine Room R/B Circuit Opening Relay CIRCUIT OPENING RELAY INSPECTION 1. REMOVE CIRCUIT OPENING RELAY SF1Z301 A23243 A INSPECT CIRCUIT OPENING RELAY (a) Using an ohmmeter, check for continuity between each terminal. Specified condition: Terminal No. Specified condition 1 2 Continuity 3 5 No continuity (b) Using an ohmmeter, check for continuity between terminals 3 and 5 when the battery voltage is applied across terminals 1 and 2. Specified condition: Continuity 3. INSTALL CIRCUIT OPENING RELAY 3571

9 SF44 SFI (1GRFE) CAMSHAFT TIMING OIL CONTROL VALVE COMPONENTS SF1YW (76, 66 in. lbf) Vbank Cover Vacuum Hose 8.0 (82, 71 in. lbf) Air Cleaner Mass Air Flow Meter Connector Ventilation Hose No. 2 N m (kgf cm, ft lbf) : Specified torque A

10 SFI (1GRFE) CAMSHAFT TIMING OIL CONTROL VALVE SF45 Heater Water Inlet Hose 28 (286, 21) Surge Tank Stay No. 2 Heater Water Outlet Hose Engine Wire VSV Connector 21 (214, 16) VSV Connector Fuel Vapor Feed Hose 21 (214, 16) Surge Tank Stay No. 1 Intake Air Surge Tank Gasket Throttle Body Bracket Water Bypass Hose No (214, 16) Water Bypass Hose No. 5 Ventilation Hose No. 1 Fuel Pipe Clamp No. 2 Fuel Pipe No. 2 Throttle Motor Connector Fuel Pipe Clamp No. 2 Fuel Pipe No (153, 11) x6 Fuel Delivery Pipe Camshaft Timing Oil Control Valve Camshaft Timing Oil Control Valve 9.0 (92, 80 in. lbf) 9.0 (92, 80 in. lbf) N m (kgf cm, ft lbf) : Specified torque Nonreusable part A

11 SFI (1GRFE) INSPECTION CAMSHAFT TIMING OIL CONTROL VALVE SF47 SF1YY01 1. INSPECT CAMSHAFT TIMING OIL CONTROL VALVE RESISTANCE Using an ohmmeter, measure the resistance between the terminals. Resistance: 6.9 to 7.9 Ω at 20 C (68 F) Valve 2 1 A INSPECT VALVE MOVEMENT Connect the positive (+) lead from the battery to terminal 1 and the negative () lead to terminal 2, and check the movement of the valve. NOTICE: Confirm that the valve does not catch. HINT: Bad returning of the valve by catching foreign objects causes subtle pressure leak in the advanced direction. DTCs could be detected. 3564

12 SF48 INSTALLATION SFI (1GRFE) CAMSHAFT TIMING OIL CONTROL VALVE 1. INSTALL CAMSHAFT TIMING OIL CONTROL VALVE (a) Install the 2 camshaft timing oil control valves to each cylinder head, and tighten the 2 bolts. Torque: 9.0 N m (92 kgf cm, 80 in. lbf) (b) Connect the 2 oil control valve connectors. 2. INSTALL FUEL DELIVERY PIPE 3. INSTALL INTAKE AIR SURGE TANK (See page EM89 ) 4. INSTALL AIR CLEANER (See page EM89 ) 5. INSTALL VBANK COVER SF1YZ

13 SFI (1GRFE) CAMSHAFT TIMING OIL CONTROL VALVE CAMSHAFT TIMING OIL CONTROL VALVE ONVEHICLE INSPECTION 1. INSPECT CAMSHAFT TIMING OIL CONTROL VALVE (a) Connect the handheld tester to the DLC3. (b) Turn the ignition switch to the ON position. (c) Start the engine and warm it up. (d) Connect the handheld tester and select the VVT from the ACTIVE TEST menu. (e) Check the engine speed when the OCV is operated by the handheld tester. Standard: VVT system is OFF (OCV is OFF): Normal engine speed VVT system is ON (OCV is ON): Rough idle or engine stalled SF43 SF1YV

14 SF46 SFI (1GRFE) REMOVAL 1. REMOVE VBANK COVER 2. REMOVE AIR CLEANER (See page EM62 ) 3. REMOVE INTAKE AIR SURGE TANK (See page EM62 ) 4. REMOVE FUEL DELIVERY PIPE 5. REMOVE CAMSHAFT TIMNG OIL CONTROL VALVE (a) Disconnect the 2 oil control valve connectors. (b) Remove the 2 bolts and 2 camshaft timing oil control valves. CAMSHAFT TIMING OIL CONTROL VALVE SF1YX

15 SF66 SFI (1GRFE) ENGINE CONTROL MODULE (ECM) COMPONENTS ENGINE CONTROL MODULE (ECM) SF1ZF01 ECM ECM Connector Heater to Register Duct Lower No. 2 Finish Panel Glove Compartment Door A

16 SFI (1GRFE) ENGINE CONTROL MODULE (ECM) SF67 INSPECTION INSPECT ECM (See page DI1 ) SF1ZG

17 SFI (1GRFE) ENGINE COOLANT TEMPERATURE (ECT) SENSOR ENGINE COOLANT TEMPERATURE (ECT) SENSOR INSPECTION 1. DRAIN ENGINE COOLANT 2. REMOVE VBANK COVER SF59 SF1Z REMOVE ENGINE COOLANT TEMPERATURE SEN SOR (a) Disconnect the engine coolant temperature sensor connector. (b) Remove the engine coolant temperature sensor and gasket from the water bypass joint. RESISTANCE KΩ Ohmmeter Acceptable (4) (32) (68) (104) (140) (176) (212) TEMPERATURE C ( F) A INSPECT ENGINE COOLANT TEMPERATURE SEN SOR RESISTANCE Using an ohmmeter, measure the resistance between terminals. Resistance: 2.32 to 2.59 kω at 20 C (68 F) to kω at 80 C (176 F) NOTICE: When inspecting the water temperature sensor in water, prevent water flow into the terminals. After inspection, wipe the water off from the sensor. 5. INSTALL ENGINE COOLANT TEMPERATURE SEN SOR (a) Install a new gasket and engine coolant temperature sensor to the water bypass joint. Torque: 20 N m (204 kgf cm, 15 ft lbf) (b) Connect the engine coolant temperature connector. 6. ADD ENGINE COOLANT 7. CHECK FOR COOLANT LEAKS 8. INSTALL VBANK COVER 3576

18 SF52 SFI (1GRFE) EFI MAIN RELAY Engine Room R/B EFI Main Relay EFI MAIN RELAY INSPECTION 1. REMOVE EFI MAIN RELAY SF1Z101 A23242 A INSPECT EFI MAIN RELAY (a) Using an ohmmeter, check for continuity between each terminal. Specified condition: Terminal No. Specified condition 1 2 Continuity 3 5 No continuity (b) Using an ohmmeter, check for continuity between terminals 3 and 5 when the battery voltage is applied across terminals 1 and 2. Specified condition: Continuity 3. INSTALL EFI MAIN RELAY 3569

19 SF68 FUEL CUT RPM INSPECTION SFI (1GRFE) FUEL CUT RPM INSPECT FUEL CUT OFF RPM (a) Increase the engine speed to at least 3,500 rpm. (b) Use a sound scope to check for injector operating noise. (c) Check that the injector operation noise stops momentarily and then resumes when the accelerator pedal is released. Fuel cut off rpm: 2,500 rpm Fuel return rpm: 1,200 rpm SF1ZH

20 Clip A23107 SFI (1GRFE) FUEL PRESSURE PULSATION DAMPER INSTALLATION SF31 SF1YK01 1. INSTALL FUEL PRESSURE PULSATION DAMPER (a) Apply a light coat of spindle oil or gasoline to a new Oring and install it to the fuel pressure pulsation damper. (b) Install the fuel pressure pulsation damper to the fuel delivery pipe. (c) Install the clip. 2. INSTALL VBANK COVER 3. CHECK FOR FUEL LEAKS 3548

21 SF30 SFI (1GRFE) FUEL PRESSURE PULSATION DAMPER FUEL PRESSURE PULSATION DAMPER REMOVAL 1. PREVENT GASOLINE FROM SPILLING OUT (See page SF1 ) 2. REMOVE VBANK COVER SF1YL01 Clip 3. REMOVE FUEL PRESSURE PULSATION DAMPER (a) Remove the clip. (b) Pull out the fuel pressure pulsation damper from the fuel delivery pipe. B

22 SF20 A23106 SFI (1GRFE) FUEL PRESSURE REGULATOR INSTALLATION SF1YE01 1. INSTALL FUEL PRESSURE REGULATOR (a) Install the vacuum hose. (b) Apply a light coat of spindle oil or gasoline to a new Oring and install it to the fuel pressure regulator. (c) Install the fuel pressure regulator with the 2 bolts. Torque: 9.0 N m (92 kgf cm, 80 in. lbf) 2. CONNECT FUEL PIPE NO.2 3. INSTALL AIR CLEANER (See page EM89 ) 4. INSTALL VBANK COVER 5. CHECK FOR FUEL LEAKS 3537

23 SFI (1GRFE) FUEL PRESSURE REGULATOR FUEL PRESSURE REGULATOR REMOVAL 1. PREVENT GASOLINE FROM SPILLING OUT (See page SF1 ) 2. REMOVE VBANK COVER 3. REMOVE AIR CLEANER (See page EM62 ) 4. DISCONNECT FUEL PIPE NO.2 SF19 SF1YD01 5. REMOVE FUEL PRESSURE REGULATOR (a) Remove the 2 bolts and fuel pressure regulator. (b) Remove the vacuum hose. A

24 SF56 SFI (1GRFE) FUEL PUMP RELAY Engine Room R/B Fuel Pump Relay FUEL PUMP RELAY INSPECTION 1. REMOVE FUEL PUMP RELAY SF1Z401 A23244 A INSPECT FUEL PUMP RELAY (a) Using an ohmmeter, check for continuity between each terminal. Specified condition: Terminal No. Specified condition Continuity 3 5 No continuity (b) Using an ohmmeter, check for continuity between terminals 3 and 5 when the battery voltage is applied across terminals 1 and 2. Specified condition: Continuity 3. INSTALL FUEL PUMP RELAY 3573

25 Ohmmeter SFI (1GRFE) FUEL PUMP RESISTOR FUEL PUMP RESISTOR INSPECTION INSPECT FUEL PUMP RESISTOR SF57 SF1Z601 Using an ohmmeter, measure the resistance between terminals. Resistance: 0.70 to 0.76 Ω at 20 C (68 F) A

26 SF32 FUEL TANK AND LINE COMPONENTS SFI (1GRFE) FUEL TANK AND LINE CAUTION: Always use new gaskets when replacing the fuel tank or component parts. Apply the proper torque to all parts tightened. SF1YM01 Fuel Return Tube Fuel Pump Gauge Retainer Fuel Pump and Sender Gauge Assembly Charcoal Canister Assembly Fuel Main Tube Gasket Fuel Tank Cap VENT Tube Fuel Pump Suction Support Speed Sensor Wire Fuel Inlet Pipe Shield Fuel Tank Fuel Inlet Pipe Fuel Inlet Hose Fuel Tank Protector Clip Fuel Tank Band Pin Fuel Tank Band Pin No.2 Fuel Tank Band No.1 Fuel Tank Band Clip 62 (632, 45) 62 (632, 45) N m (kgf cm, ft lbf) : Specified torque Nonreusable part B

27 Crack Leakage Deformation 2 7 mm ( in.) Pipe BO0919 Hose SFI (1GRFE) FUEL TANK AND LINE INSPECTION SF35 SF1YN01 INSPECT FUEL TANK AND LINE (a) Check the fuel lines for cracks or leakage, and all connections for deformation. (b) Check the fuel tank vapor vent system hoses and connections for looseness, sharp bends or damage. (c) Check the fuel tank for deformation, cracks, fuel leakage or tank band looseness. (d) Check the filler neck for damage or fuel leakage. (e) Hose and pipe connections are as shown in the illustration. If a problem is found, repair or replace the parts as necessary. Clip 0 3 mm ( in.) FU0041 Hose Clamp Area Fuel Inlet Hose Clamp 0 3 mm ( in.) B

28 SF36 SFI (1GRFE) FUEL TANK AND LINE INSTALLATION SF1YP01 1. INSTALL FUEL PUMP ASSEMBLY (See page SF17 ) 2. INSTALL FUEL TANK ASSEMBLY (a) Set up the fuel tank on the transmission jack. (b) Operate the transmission jack and install the fuel tank. (c) Install the 2 fuel tank bands with the 2 bolts. Torque: 62 N m (632 kgf cm, 45 ft lbf) B17591 (d) Install the fuel pipe bracket to the body with the 2 nuts. Torque: 20 N m (204 kgf cm, 15 ft lbf) 3. CONNECT FUEL PUMP CONNECTOR B CONNECT FUEL MAIN TUBE AND RETURN TUBE (See page SF1 ) B CONNECT SPEED SENSOR WIRE Connect the speed sensor wire to the fuel tank with the nut. B INSTALL CHARCOAL CANISTER ASSEMBLY (a) Connect the pump module connector, vent hose and purge line hose to the charcoal canister. (b) Install the charcoal canister assembly with the 4 bolts. Torque:14.7 N m (150 kgf cm, 11 ft lbf) B

29 SFI (1GRFE) FUEL TANK AND LINE SF37 7. INSTALL FUEL INLET PIPE SHIELD (a) Install the fuel inlet pipe shield with the 4 bolts. (b) Install the fuel tank cap. 8. CHECK FOR FUEL LEAKS 9. INSTALL SPARE TIRE B

30 SFI (1GRFE) FUEL TANK AND LINE REMOVAL 1. PREVENT GASOLINE FROM SPILLING OUT (See page SF1 ) 2. REMOVE FUEL TANK CAP 3. REMOVE FUEL INLET PIPE SHIELD Remove the 4 bolts and fuel inlet pipe shield. SF33 SF1YO01 B REMOVE CHARCOAL CANISTER ASSEMBLY (a) Remove the 4 bolts and charcoal canister assembly. (b) Disconnect the pump module connector, vent hose and purge line hose from the charcoal canister. B DISCONNECT SPEED SENSOR WIRE Remove the nut and disconnect the speed sensor wire from the fuel tank. B DISCONNECT FUEL MAIN TUBE AND RETURN TUBE (See page SF1 ) B REMOVE FUEL TANK ASSEMBLY (a) Set up a transmission jack under the fuel tank. (b) Remove the 2 nuts and disconnect the fuel pipe bracket from the body. B

31 SF34 SFI (1GRFE) FUEL TANK AND LINE (c) Remove the 2 bolts and disconnect the 2 fuel tank bands from the fuel tank. (d) Operate the transmission jack and remove the fuel tank. 8. REMOVE FUEL PUMP ASSEMBLY (See page SF9 ) B

32 SFI (1GRFE) FUEL PUMP SF7 COMPONENTS SF1Y701 Fuel Return Tube Fuel Pump Gauge Retainer Fuel Pump and Sender Gauge Assembly Charcoal Canister Assembly Fuel Main Tube Gasket Fuel Tank Cap VENT Tube Fuel Pump Suction Support Speed Sensor Wire Fuel Inlet Pipe Shield Fuel Tank Fuel Inlet Pipe Fuel Inlet Hose Fuel Tank Protector Clip Fuel Tank Band Pin Fuel Tank Band Pin No.2 Fuel Tank Band No.1 Fuel Tank Band Clip 62 (632, 45) 62 (632, 45) N m (kgf cm, ft lbf) : Specified torque Nonreusable part B

33 SF8 SFI (1GRFE) FUEL PUMP Fuel Suction Plate No.1 w/ Fuel Filter Fuel Pump Harness Fuel Sender Gauge ORing Spring Fuel Suction Plate No.2 ERing Fuel Pump Fuel Suction Filter Fuel Subtank Nonreusable part B

34 SF10 SFI (1GRFE) FUEL PUMP DISASSEMBLY SF1Y REMOVE FUEL SENDER GAUGE (a) Disconnect the sender gauge connector from the fuel suction plate No.1. B17539 Unlock (b) Unlock the fuel sender gauge and slide to remove. (a) Slide B REMOVE FUEL SUBTANK (a) Disconnect the fuel pump harness connector from the fuel suction plate No.1. B17543 (b) Disconnect the suction filter hose from the fuel subtank. B17544 (c) Disconnect the 2 tubes from the tube clamps. B

35 SFI (1GRFE) FUEL PUMP SF1 1 (d) Using a screwdriver with the tip wrapped in tape, disconnect the 3 snapclaws from the fuel suction support No.2. NOTICE: Do not damage the fuel suction plate No.2 and fuel subtank. (e) Disconnect the fuel suction plate No.1 with the fuel filter assembly from the fuel subtank. B REMOVE FUEL FILTER WITH FUEL PUMP (a) Using a screwdriver with the tip wrapped in tape, disconnect the 2 snapclaws from the fuel suction support. NOTICE: Do not damage the fuel filter assembly and fuel suction support. (b) Remove the fuel filter assembly with fuel pump from the fuel suction support. B REMOVE FUEL PUMP (a) Using a screwdriver with the tip wrapped in tape, disconnect the 5 snapclaws from the suction filter. NOTICE: Do not damage the fuel filter assembly and suction filter. (b) Remove the fuel suction filter with fuel pump from the fuel filter. B17546 (c) Disconnect the fuel pump harness from the fuel pump. B17609 (d) Remove the Oring from the fuel filter or fuel pump. B

36 SF12 SFI (1GRFE) FUEL PUMP 5. REMOVE FUEL SUCTION PLATE NO.2 (a) Using a screwdriver, remove the 2 Erings from the suction plate No.2. (b) Remove the suction plate No.2 and 2 springs from the fuel suction plate No.1. B

37 Ohmmeter SFI (1GRFE) FUEL PUMP SF13 SF1YA01 INSPECTION 1. INSPECT FUEL PUMP RESISTANCE Using an ohmmeter, measure the resistance between the terminals. Resistance: 0.2 to 0.3 Ω at 20 C (68 F) If the resistance is not as specified, replace the fuel pump. B Battery B INSPECT FUEL PUMP OPERATION (a) Connect the lead wire to the fuel pump. (b) Connect the positive (+) lead from the battery to terminal 1 of the connector, and the negative () lead to terminal 2. Check that the fuel pump operates. NOTICE: These tests must be done quickly (within 10 seconds) to prevent the coil from burning out. Keep the fuel pump as far away from the battery as possible. Always do switching on the battery side. If operation is not as specified, replace the fuel pump and/or read wire. (c) Disconnect the lead wire from the fuel pump. 3530

38 Key Keyway B17551 SFI (1GRFE) FUEL PUMP INSTALLATION SF17 SF1YC01 1. INSTALL FUEL PUMP ASSEMBLY (a) Install a new gasket to the fuel tank. (b) Install the fuel pump assembly to the fuel tank. NOTICE: Be careful not to bend the arm of the fuel sender gauge. (c) Align the keyway of the fuel suction tube support with the key of the fuel suction plate No.1. S Mark (d) (e) Apply MP grease to the entire interior surface of the fuel pump gage retainer. Align the triangle mark on new fuel pump gauge retainer with the S mark on the fuel tank while pushing down the fuel suction tube. Attach the fuel pump gage retainer to the fuel tank. Triangle Mark B17552 SST Triangle Mark MAX. Mark (f) Rotate the fuel pump gage retainer by hand. Use an SST to tighten the fule pump gage retainer by turning it one and a half times. The triangle mark on the fuel pump gage retainer must be positioned between the A and MAX. marks on the fuel tank. SST ( , , ) NOTICE: Do not use other tools in this operation. Damage to the fuel pump gauge retainer and the fuel tank may result. HINT: A rib on the fuel pump gauge retainer fits into a tip of the SST. A Mark B CONNECT FUEL SUCTION TUBE Connect the fuel pump tube and return tube to the fuel tank with the tube joint clips. Tube Joint Clip B

39 SF18 SFI (1GRFE) FUEL PUMP NOTICE: Check that there are no scratches or foreign objects on the connecting part. Check that the fuel tube joint is inserted securely. Check that the tube joint clip is on the collar of the fuel tube joint. After installing the tube joint clip, check that the fuel tube joint has not been pulled off. 3. CHECK FOR FUEL LEAKS 4. INSTALL FUEL TANK ASSEMBLY (See page SF36 ) 3535

40 SFI (1GRFE) FUEL PUMP FUEL PUMP ONVEHICLE INSPECTION SF5 SF1Y CHECK FUEL PUMP OPERATION AND FUEL LEAK (a) When using the handheld tester: (1) Connect the handheld tester to the DLC3. (2) Turn the ignition switch to the ON position and the handheld tester main switch ON. NOTICE: Do not start the engine. (3) Enter the following menus: DIAGNOSIS / EN HANCED OBD II / ACTIVE TEST / FUEL PUMP / SPD HINT: Please refer to the handheld tester operator s manual for further details. Engine Room R/B +B FP A23409 (b) When not using the handheld tester: (1) Remove the circuit opening relay. (2) Using a service wire, connect terminals FP and +B of the relay block. NOTICE: Pay careful attention to the terminal connecting position to avoid a malfunction. (3) Turn the ignition switch to the ON position, and check that the fuel pump operates. NOTICE: Do not start the engine. (c) Check that there are no fuel leaks after performing maintenance of the fuel system. (d) Turn the ignition switch off. (e) Disconnect the handheld tester from the DLC3. Fuel Tube Connector A CHECK FUEL PRESSURE (a) Prepare for inspection. (1) Prepare a new fuel tube, and take the fuel tube connector out of the tube. HINT: Part No (b) Prevent gasoline from spilling out (See page SF1 ). (c) Disconnect the fuel pipe clamp (See page SF1 ). (d) Disconnect the fuel pipe No. 1 from the fuel main tube. 3522

41 SF6 SFI (1GRFE) FUEL PUMP Fuel Tube SST (Hose) SST (Clip) SST (Gauge) SST (Tjoint) SST (Hose) SST Fuel Tube Connector A23417 (e) Install SST (pressure gauge) as shown in the illustration by using SSTs and a fuel tube connector. SST ( , ), ( , , , ) (f) Wipe off any spattered gasoline. (g) Start the engine. (h) Measure the fuel pressure at idle. Fuel pressure: 281 to 287 kpa (2.87 to 2.93 kgf cm 2, 40.8 to 41.7 psi) (i) Stop the engine. (j) Check that the fuel pressure remains as specified for 5 minutes after the engine has stopped. Fuel pressure: 147 kpa (1.5 kgf cm 2, 21 psi) or more If pressure is not as specified, check the fuel pump, pressure regulator and/or injectors. (k) After checking the fuel pressure, disconnect the negative () terminal cable from the battery carefully, and remove the SST and fuel tube connector to prevent gasoline from splashing. (l) Reconnect the fuel tube to the fuel main tube. (m) Install the EFI fuel pipe clamp. (n) Check for fuel leak. 3523

42 SF14 SFI (1GRFE) FUEL PUMP REASSEMBLY SF1YB01 1. REMOVE FUEL SUCTION PLATE NO.2 (a) Install the 2 springs and suction plate No.2 to the suction plate No.1. (b) Using needlenose pliers, install 2 new Erings to the suction plate No.2. B INSTALL FUEL PUMP (a) Apply a light coat of gasoline or spindle oil to a new O ring, and install it to the fuel pump. B17548 (b) Connect the fuel pump harness connector to the fuel pump. B17609 (c) Install the fuel pump with the suction filter to the fuel filter. B INSTALL FUEL FILTER Install the fuel filter to the fuel subtank. B

43 SFI (1GRFE) FUEL PUMP SF15 4. INSTALL FUEL SUBTANK (a) Connect the fuel suction plate No.2 to the fuel subtank with the 3 snapclaws engaged. B17541 (b) Connect the 2 tubes to the tube clamps. B17608 (c) Connect the suction filter hose to the fuel subtank. B17544 (d) Connect the fuel pump harness connector to the fuel suction plate No.1. B INSTALL FUEL SENDER GAUGE (a) Install the fuel sender gauge to the fuel suction support. B

44 SF16 SFI (1GRFE) FUEL PUMP (b) Connect the sender gauge connector to the fuel suction plate No.1. B

45 SFI (1GRFE) FUEL PUMP REMOVAL SF9 SF1Y REMOVE FUEL TANK ASSEMBLY (See page SF33 ) 2. DISCONNECT FUEL SUCTION TUBE Remove the 2 tube clips, and pull out the 2 fuel tubes. Tube Joint Clip B17536 Nylon Tube ORing Fuel Tube Joint Tube Joint Clip B17537 NOTICE: Before this operation, check the connector for dirt, mud or other contamination. Clean if necessary. Be careful of mud. The connector s Oring, which seals the pipe and connector, is easily contaminated. Do not use any tool in this operation. Do not bend or twist the nylon tube. Protect the connector by covering it with a plastic bag. When the pipe and connector are stuck, push and pull the connector to release and pull the connector out carefully. SST Rib B REMOVE FUEL PUMP ASSEMBLY (a) Using SST, loosen the fuel pump gauge retainer. SST ( , , ) HINT: A rib on the fuel pump gauge retainer fits into a tip of the SST. (b) Remove the fuel pump gauge retainer. (c) Remove the fuel suction tube. NOTICE: Be careful not to bend the arm of the fuel sender gauge. (d) Remove the gasket from the fuel tank. 3526

46 SF64 +B HT E1 A23240 SFI (1GRFE) HEATED OXYGEN SENSOR HEATED OXYGEN SENSOR INSPECTION SF1ZD01 INSPECT HEATED OXYGEN SENSOR (BANK1, BANK2 OXYGEN SENSOR) Using an ohmmeter, measure the resistance between the terminals. Resistance: Terminal No. Resistance 1 (HT) 2 (+B) 5 to 10 Ω at 20 C (68 F) 1 (HT) 4 (E1) No Continuity If the resistance is not as specified, replace the sensor. 3581

47 SF22 SFI (1GRFE) INJECTOR COMPONENTS SF1YG (76, 66 in. lbf) Vbank Cover Vacuum Hose 8.0 (82, 71 in. lbf) Air Cleaner Mass Air Flow Meter Connector Ventilation Hose No. 2 N m (kgf cm, ft lbf) : Specified torque A

48 SFI (1GRFE) INJECTOR SF23 28 (286, 21) Heater Water Inlet Hose Heater Water Outlet Hose Engine Wire VSV Connector Intake Air Surge Tank Surge Tank Stay No (214, 16) VSV Connector Fuel Vapor Feed Hose 21 (214, 16) Surge Tank Stay No. 1 Gasket Water Bypass Hose No. 4 Water Bypass Hose No. 5 Throttle Motor Connector Throttle Body Bracket 21 (214, 16) Ventilation Hose No. 1 Fuel Pipe Clamp No. 2 Fuel Pipe No. 2 Fuel Pipe Clamp No. 2 Fuel Pipe No. 1 x6 15 (153, 11) Fuel Delivery Pipe Fuel Injector Connector Oring Fuel Injector Injector Vibration Insulator N m (kgf cm, ft lbf) : Specified torque Nonreusable part A

49 SF26 Pressure Regulator SST SST Injector Fuel Tube Connector SST SST A23214 SFI (1GRFE) INJECTOR INSPECTION 1. INSPECT INJECTOR INJECTION CAUTION: Keep the injector clear of sparks during the test. SF1YI01 Fuel Tube Connector (a) Obtain a new No.1 fuel pipe (part No ) and take the fuel tube connector out of the pipe. A23403 Fuel Tube Connector SST (Hose) Fuel Pipe (b) Install the fuel tube connector to the SST (hose), then connect the tube connector and fuel pipe. SST ( ) CAUTION: Connect the fuel tube connector (quick type) after observing the precautions. (c) Remove the pressure regulator from the delivery pipe. (d) Install the Oring to the fuel inlet of the pressure regulator. A23404 Pressure Regulator SST (Hose) SST (Union) (e) (f) Connect the SST (hose) to the fuel inlet of the pressure regulator with another SST (union) and the 2 bolts. SST ( , ) Torque: 9.0 N m (92 kgf cm, 80 in. lbf) Connect the fuel return hose to the fuel outlet of the pressure regulator. Fuel Return Hose A23215 SST SST (Adaptor) ORing SST (Clamp) Vinyl Tube A23216 (g) Install the Oring to the injector. (h) Connect SSTs (adaptor and hose) to the injector, and hold the injector and union with SST (clamp). SST ( , , ) (i) Put the injector into a graduated cylinder. CAUTION: Install a suitable vinyl tube onto the injector to prevent gasoline from splashing out. (j) Operate the fuel pump (see page SF5 ). 3543

50 SFI (1GRFE) INJECTOR SF27 Connect SST (Wire) (k) Connect the SST (wire) to the injector and battery for 15 seconds, and measure the injection volume with a graduated cylinder. Test each injector 2 or 3 times. SST Volume: 76 to 91 cm 3 (4.6 to 5.5 cu in.) per 15 seconds Difference between each injector: 15 cm 3 (0.9 cu in.) or less If the injection volume is not as specified, replace the injector. A INSPECT LEAKAGE Under the above conditions, disconnect the tester probes of the SST (wire) from the battery and check the fuel leakage from the injector. SST Fuel drop: 1 drop or less per 12 minutes A

51 SF28 New Insulator SFI (1GRFE) INJECTOR INSTALLATION SF1YJ01 1. INSTALL FUEL INJECTOR (a) Install a new insulator to the fuel injector. (b) Apply a light coat of spindle oil or gasoline to a new Oring and install it to the fuel injector. New Oring A23103 Connector (c) (d) (e) While turning the fuel injector to the left and right, install it to the fuel delivery pipe. Position the fuel injector connector facing out from the fuel delivery pipe. Apply the above procedures to the other fuel injectors. Turn Push A23104 Connector Turn A INSTALL FUEL DELIVERY PIPE (a) Place the fuel delivery pipe together with the 6 fuel injectors on the intake manifold. (b) Temporarily install the 6 bolts which are used to hold the fuel delivery pipe to the intake manifold. (c) Check that the fuel injectors rotate smoothly. HINT: If the fuel injectors do not rotate smoothly, the probable cause is incorrect installation of Orings. Replace the Oring of the injector that does not rotate smoothly. (d) Position the fuel injector connector facing out from the fuel delivery pipe. (e) Tighten the 6 bolts which are used to hold the fuel delivery pipe to the intake manifold. Torque: 15 N m (153 kgf cm, 11 ft lbf) (f) Connect the 6 fuel injector connectors. 3. CONNECT FUEL PIPE NO.2 (a) Push in the tube connector to the pipe, then tube connector makes a click sound. NOTICE: Check if there is any damage or foreign objects on the connected part of the fuel pipe. After connecting, check if the pipe and connector are securely connected by pulling them. (b) Install the fuel pipe clamp. 4. CONNECT FUEL PIPE NO

52 SFI (1GRFE) INJECTOR SF29 (a) Push in the tube connector to the pipe, then tube connector makes a click sound. NOTICE: Check if there is any damage or foreign objects on the connected part of the fuel pipe. After connecting, check if the pipe and connector are securely connected by pulling them. (b) Install the fuel pipe clamp. 5. INSTALL INTAKE AIR SURGE TANK (See page EM62 ) 6. INSTALL AIR CLEANER (See page EM89 ) 7. INSTALL VBANK COVER 8. ADD ENGINE COOLANT 9. CHECK FOR FUEL LEAKS 3546

53 SFI (1GRFE) INJECTOR INJECTOR ONVEHICLE INSPECTION 1. REMOVE VBANK COVER 2. REMOVE AIR CLEANER (See page EM62 ) 3. REMOVE INTAKE AIR SURGE TANK (See page EM62 ) 4. INSPECT INJECTOR RESISTANCE (a) Disconnect the 6 injector connectors. (b) Using an ohmmeter, measure the resistance between the terminals. Resistance: 11.6 to 12.4 Ω at 20 C (68 F) If the resistance is not as specified, replace the injector. (c) Reconnect the 6 injector connectors. 5. INSTALL INTAKE AIR SURGE TANK (See page EM89 ) 6. INSTALL AIR CLEANER (See page EM89 ) 7. INSTALL VBANK COVER SF21 SF1YF

54 SF24 SFI (1GRFE) INJECTOR REMOVAL 1. PREVENT GASOLINE FROM SPILLING OUT (See page SF1 ) 2. DRAIN ENGINE COOLANT 3. REMOVE VBANK COVER 4. REMOVE AIR CLEANER (See page EM62 ) 5. REMOVE INTAKE AIR SURGE TANK (See page EM89 ) SF1YH01 Nylon Tube A23099 Tube Connector 6. DISCONNECT FUEL PIPE NO.1 (a) Remove the fuel pipe clamp. (b) Pinch the tube connector then pull out the fuel pipe. NOTICE: Check if there is any dirt around the connector before this work, because the quick connector has an Oring to seal the fuel pipe and fuel delivery pipe. Clean dirt away if necessary. Do not use any tool in this work. Do not bend or twist the nylon tube. Keep the plug free from foreign objects. To protect the fuel pipe, cover it with a plastic bag after checking. When the fuel pipe and fuel delivery pipe are stuck, pinch the nylon tube with fingers, and turn it carefully to free and then disconnect the fuel pipe. Oring Pipe A23213 Nylon Tube A23100 Tube Connector 7. DISCONNECT FUEL PIPE NO.2 (a) Remove the fuel pipe clamp. (b) Pinch the tube connector and then pull out the fuel pipe. NOTICE: Check if there is any dirt around the connector before this work, because the quick connector has an Oring to seal the fuel pipe and fuel delivery pipe. Clean dirt away if necessary. Do not use any tool in this work. Do not bend or twist the nylon tube. Keep the plug free from foreign objects. To protect the fuel pipe, cover it with a plastic bag after checking. When the fuel pipe and fuel pressure regulator are stuck, pinch the nylon tube with fingers, and turn it carefully to free and then disconnect the fuel pipe. Oring Pipe A

55 SFI (1GRFE) INJECTOR SF25 8. REMOVE FUEL DELIVERY PIPE (a) Disconnect the 6 fuel injector connectors. (b) Remove the 6 bolts and fuel delivery pipe together with the 6 fuel injectors. NOTICE: Be careful not to drop the injectors when removing the fuel delivery pipe. A REMOVE FUEL INJECTOR (a) Remove the 6 fuel injectors from the fuel delivery pipe. (b) Remove the Oring and injector vibration insulator from each fuel injector. A

56 Ohmmeter SFI (1GRFE) KNOCK SENSOR SF61 SF1ZA01 INSPECTION 1. INSPECT KNOCK SENSOR Using an ohmmeter, measure the resistance between terminals. Resistance: 120 to 280 kω at 20 C (68 F) HINT: If the resistance is not as specified, replace the sensor. A

57 SF62 SFI (1GRFE) KNOCK SENSOR LH Bank Engine Rear Upper 15 INSTALLATION SF1ZB01 1. INSTALL KNOCK SENSOR (a) Install the 2 knock sensors with the 2 bolts so that the cen ter of the sensor comes within the range of 15 from the bolt center as shown in the illustration. Torque: 20 N m (204 kgf cm, 15 ft lbf) (b) Connect the 2 knock sensor connectors. 2. INSTALL WATER OUTLET PIPE NO.1 (a) Install the water outlet pipe with the 3 bolts. Torque: 9.0 N m (92 kgf cm, 80 in. lbf) (b) Install the 4 wire harness clamps. 3. CONNECT HEATER WATER INLET HOSE 4. INSTALL CYLINDER HEAD (See page EM89 ) RH Bank Upper Engine Front 15 A

58 SF60 SFI (1GRFE) KNOCK SENSOR KNOCK SENSOR REMOVAL 1. REMOVE CYLINDER HEAD (See page EM62 ) SF1Z DISCONNECT HEATER WATER INLET HOSE A REMOVE WATER OUTLET PIPE NO.1 (a) Remove the 4 wire harness clamps. (b) Remove the 3 bolts and water outlet pipe. A REMOVE KNOCK SENSOR (a) Disconnect the 2 knock sensor connectors. (b) Remove the 2 bolts and 2 knock sensors. A

59 SF38 RESISTANCE kω Air E2 Acceptable VG +B THA E2G SFI (1GRFE) MASS AIR FLOW (MAF) METER MASS AIR FLOW (MAF) METER INSPECTION 1. INSPECT OUTPUT VOLTAGE SF1YQ01 (a) Apply battery voltage across terminals 1 (+B) and 2 (E2G). (b) Connect the positive (+) tester probe to terminal 3 (VG), and the negative () tester probe to terminal 2 (E2G). (c) Blow air into the MAF meter, and check if the voltage fluctuates. 2. INSPECT RESISTANCE Using an ohmmeter, measure the resistance between terminals 4 (THA) and 5 (E2). Resistance: 13.6 to 18.4 kω at 20 C (4 F) 2.21 to 2.69 kω at 20 C (68 F) 0.49 to 0.67 kω at 60 C (140 F) (4) (32) (68) (104)(140)(176)(212) TEMPERATURE C( F) A23219 Air VG ECM E2G Voltmeter A23220 A INSPECT MASS AIR FLOW METER (a) If using a handheld tester: (1) Connect the handheld tester to the DLC3. (2) Turn the ignition switch to the ON position. (3) Enter the following menus: DIAGNOSIS / EN HANCED OBD II / DATA LIST / MAF (4) Blow air into the MAF meter, and check that the air flow value of the CURRENT DATA changes. If operation is not as specified, check the MAF meter (see page DI98 ) as well as the wiring and the ECM. (b) If not using a handheld tester: (1) Turn the ignition switch to the ON position. (2) Connect the positive tester probe of the voltmeter to terminal VG of the ECM and the negative tester probe of the voltmeter to terminal E2G of the ECM. (3) Blow air into the air flow meter, and check if the voltage fluctuates. If operation is not as specified, check the MAF meter (see page DI98 ), the wiring and the ECM. 3555

60 SFI (1GRFE) SFI SYSTEM SFI SYSTEM PRECAUTION HINT: SF1 SF1Y501 All DTCs output from the computer will be erased when the negative () terminal cable is removed from the battery. Therefore, if necessary, read the DTCs before removing the negative () terminal cable from the battery. 1. BEFORE WORKING ON FUEL SYSTEM, DISCON NECT NEGATIVE () TERMINAL CABLE FROM BAT TERY 2. DO NOT SMOKE OR WORK NEAR FLAME WHEN WORKING ON THE FUEL SYSTEM 3. KEEP GASOLINE AWAY FROM RUBBER OR LEATH ER PARTS 4. MAINTENANCE PRECAUTIONS (a) In the event of engine misfire, these precautions should be taken. (1) Check that the battery terminals are properly connected. (2) After repair work, check that the ignition coil terminals and all other ignition system lines are reconnected securely. (3) When cleaning the engine compartment, be especially careful to protect the electrical system from water. (b) Precautions when handling the oxygen sensor and A/F sensor. (1) Do not drop the oxygen sensor or A/F sensor or hit them against another object. (2) Do not allow the sensor to come into contact with water. 5. IF VEHICLE IS EQUIPPED WITH MOBILE RADIO SYS TEM (HAM, CB, ETC.) If the vehicle is equipped with a mobile communication system, refer to the precaution in the IN section. 6. AIR INDUCTION SYSTEM (a) Separation of the engine oil dipstick, oil filler cap, PCV hose, etc. may cause the engine to be out of tune. (b) Disconnection, looseness or cracks in the parts of the air induction system between the throttle body and cylinder head will result in air suction and cause the engine to be out of tune. 7. ELECTRONIC CONTROL SYSTEM (a) Before removing SFI wiring connectors, terminals, etc., first disconnect the power by either turning the ignition switch off or disconnecting the negative () terminal cable from the battery. 3518

61 SF2 SFI (1GRFE) SFI SYSTEM HINT: Always check for diagnostic trouble codes before disconnecting the negative () terminal cable from the battery. (b) When installing the battery, be especially careful to correctly connect the positive (+) and negative () cables. (c) Do not apply severe impact to the parts during removal or installation. Handle all SFI parts carefully, especially the ECM. (d) Be careful during troubleshooting as there are numerous transistor circuits, and even slight terminal contact can cause further trouble. (e) Do not open the ECM cover. (f) When inspecting in rainy weather, take care to prevent an intrusion of water. Also, when washing the engine compartment, prevent water from getting on the SFI parts and wiring connectors. (g) Parts should be replaced as an assembly. (h) Care should be taken when pulling out and inserting wiring connectors. (1) Release the lock and pull out the connector, pulling on the connectors. (2) Fully insert the connector and check that it is locked. SST (i) Use SST for inspection or test of the injector or its wiring connector. SST FI2553 Engine Room R/B Circuit Opening Relay 8. FUEL SYSTEM (a) When disconnecting the high fuel pressure line, a large amount of gasoline will spill out. Be sure to observe the following procedures: (1) Remove the circuit opening relay. (2) Start the engine. After the engine has stopped on its own, turn the ignition switch off. A

62 SFI (1GRFE) SFI SYSTEM SF3 (3) Put a container under the connecting part of the pressure line. (4) Slowly loosen the connection. (5) Disconnect the connection. (6) Plug the connection with a rubber plug. (7) Install the circuit opening relay. B00679 CORRECT Oring WRONG Delivery Pipe A23211 (b) Observe the following precautions when removing and installing the injectors. (1) Never reuse the Oring. (2) When placing a new Oring on the injector, take care not to damage it in any way. (3) Coat a new Oring with spindle oil or gasoline before installing. Never use engine oil, gear oil or brake fluid. Oring Injector Delivery Pipe Intake Manifold (c) Install the injector to the delivery pipe and lower intake manifold as shown in the illustration. NOTICE: Before installing the injector, apply spindle oil or gasoline where the delivery pipe or cylinder head contacts the O ring of the injector. Insulator A23212 Disconnect (d) Observe the following when disconnecting the fuel tube connector: (1) Check if there is any dirt in the pipe and around the connector before disconnecting the fuel tube connector. If necessary, clean the dirt away. (2) Disconnect the fuel pipe clamp from the connector. B17532 Push Pull B11684 (3) Be sure to disconnect them by hand. (4) When the connector and the pipe are stuck, push and pull the connector. Then disconnect and pull it out. Do not use any tools at this time. (5) Check if there is any dirt or other foreign matter on the seal surface of the disconnected pipe. If necessary, clean the dirt away. (6) Do not damage the disconnected pipe and connector and prevent intrusion of foreign objects by covering them with a plastic bag. 3520

63 SF4 SFI (1GRFE) SFI SYSTEM Push B11683 (e) Observe the following when connecting the fuel tube connector: (1) Check if there is any damage or foreign objects in the connected part of the pipe. (2) Match the axis of the connector with the axis of the pipe, and push into the connector until a click sound is heard. If the connection is tight, apply a small amount of fresh engine oil on the tip of the pipe. (3) After finishing the connection, pull the pipe and the connector to ensure it is secure. (4) Check to make sure no fuel leak is present. If the result is not as specified, repair or replace. Pull B12520 Install (5) Install the fuel pipe clamp to the connector. (6) Check to make sure no fuel leak is present. If the result is not as specified, repair or replace. B

64 SF40 SFI (1GRFE) THROTTLE BODY COMPONENTS SF1YS (76, 66 in. lbf) Vbank Cover 8.0 (82, 71 in. lbf) Water Bypass Hose No. 4 Vacuum Hose Throttle Body Air Cleaner 11 (112, 9) Throttle Body Gasket Throttle Motor Connector Mass Air Flow Meter Connector Ventilation Hose No. 2 Water Bypass Hose No. 5 N m (kgf cm, ft lbf) : Specified torque Nonreusable part A

65 SF42 SFI (1GRFE) THROTTLE BODY INSTALLATION SF1YU01 1. INSTALL THROTTLE BODY (a) Install a new gasket and the throttle body w/ motor with the 4 bolts. Torque: 11 N m (112 kgf cm, 9 ft lbf) (b) Connect the throttle motor connector. A CONNECT WATER BYPASS HOSE NO.4 A CONNECT WATER BYPASS HOSE NO.5 4. INSTALL AIR CLEANER (See page EM89 ) 5. INSTALL VBANK COVER 6. ADD ENGINE COOLANT 7. CHECK FOR ENGINE COOLANT LEAKS A

66 A23221 SFI (1GRFE) THROTTLE BODY THROTTLE BODY ONVEHICLE INSPECTION SF39 SF1YR01 1. CHECK FOR OPERATING SOUND (a) Turn the ignition switch to the ON position. (b) When turning the accelerator pedal position sensor lever, listen to the running sound of the motor. Also, check that there is no friction sound. If operation is not as specified, check the throttle control motor (see page DI283 ), wiring and ECM. 2. INSPECT THROTTLE POSITION SENSOR (a) Connect the handheld tester to the DLC3. (b) Turn the ignition switch to the ON position. (c) When turning the accelerator pedal position sensor lever to the fullopen position, check the percentage of the throttle valve opening angle (THROTTLE POS) of the CURRENT DATA. Standard percentage of the valve opening angle: 60 % or more If operation is not as specified, check the accelerator pedal position sensor (see page DI299 ), the wiring and the ECM. If not using a handheld tester, measure the voltage between the terminals (VTA1 E2, VTA2 E2) of the ECM connector (see page DI34 ). 3. INSPECT AIR ASSIST SYSTEM (a) Start the engine and check that the MIL does not illuminate. (b) Let the engine warm up to the normal operating temperature. (c) Switch the A/C compressor from ON to OFF, and check the idle speed. Idle speed (Transmission in neutral): 650 to 750 rpm NOTICE: Perform inspection without an electrical load. 4. INSPECT THROTTLE BODY RESISTANCE Using an ohmmeter, measure the resistance between the terminals. Terminal No. Resistance 2 (M+) 1 (M) 0.3 to 100 Ω at 20 C (68 F) M+ M A

67 SFI (1GRFE) THROTTLE BODY REMOVAL 1. DRAIN ENGINE COOLANT 2. REMOVE VBANK COVER 3. REMOVE AIR CLEANER (See page EM62 ) SF41 SF1YT01 4. DISCONNECT WATER BYPASS HOSE NO.5 A DISCONNECT WATER BYPASS HOSE NO.4 A REMOVE THROTTLE BODY (a) Disconnect the throttle motor connector. (b) Remove the 4 bolts, throttle body and gasket. A

68 SF58 Continuity Ohmmeter B17835 SFI (1GRFE) VSV FOR EVAPORATIVE EMISSION (EVAP) VSV FOR EVAPORATIVE EMISSION (EVAP) INSPECTION 1. REMOVE VSV SF1Z INSPECT VSV (a) Inspect the VSV for an open circuit. Using an ohmmeter, measure the resistance between the terminals. Resistance: 26 to 30 Ω at 20 C (68 F) If the resistance is not as specified, replace the VSV. Ohmmeter (b) Inspect the VSV for ground. Using an ohmmeter, check that there is no continuity between each terminal and the body. If there is continuity, replace the VSV. No Continuity B17836 (c) Inspect VSV operation. (1) Check that air does not flow from the ports. Air B17837 (2) Apply battery voltage across the terminals. (3) Check that air flows from the ports. If operation is not as specified, replace the VSV. 3. REINSTALL VSV Air Battery B