Service Bulletin. Subject : TROUBLESHOOTING PROCEDURE FOR 1ND-TV ENGINE: LACK OF POWER OR HESITATION

Transcription

1 Section : Engine Ref. No. : EG-6008 Service ulletin Date : Mar.,2006 Page : 1 of 19 rea pplication : Europe Model Name : COROLL Model Code : NDE120 Subject : TROULESHOOTI PROCEDURE FOR 1ND-TV EINE: LCK OF POWER OR HESITTION This Service ulletin corresponds to problems of the common-rail diesel engine when no DTC is present. This troubleshooting procedure checks for the cause of an obvious lack of engine power (the vehicle speed does not reach the target speed in the high speed range) while the vehicle is being driven. In this Service ulletin, there are several references made to the related Repair Manual. This is repair manual COROLL, NDE120 series, ug., 2004, Pub. No. RM1129E. When you are performing this troubleshooting procedure, you will need to have access to it. Part No. Information : Production Effective : New Part No. New Part Name Qty N N N VIN N Production Date N CIRCUIT DESCRIPTION Malfunction Condition Main Trouble reas Related Trouble reas Lack of power caused by abnormal fuel injection volume (Supply pump or injector malfunction) Lack of power caused by intake air volume shortage (Turbocharger malfunction, Front exhaust pipe or Exhaust manifold converter blocked) 1. Injector malfunctions Injector piston movement malfunction Injector stuck closed Injector stuck open Deposit in injector Injector circuit malfunction 2. bnormal common rail pressure Supply pump 1. bnormal intake air volume Turbocharger Front exhaust pipe blocked Exhaust manifold converter blocked Check that the vehicle has not been modified in any way prior to the vehicle inspection. Specified values in the following troubleshooting flowchart are for reference only. Variations in the Data List result values may occur depending on the measuring conditions or the vehicle's age. Even if the Data List values indicate a standard level, the vehicle may not be functioning normally. There may possibly be some concealed factors causing the malfunction.

2 Service ulletin Ref. No. : EG-6008 Page : 2 of 19 EINE TROULESHOOTI PROCEDURE FOR 1ND-TV EINE PRECUTION efore troubleshooting, conduct the following checks in accordance with the SIC INSPECTION procedures listed in the Repair Manual (See Pub. No. RM1129E, page 05-8). 1. SIC INSPECTION Check the fuel quality. (1) Check that only diesel fuel has been used. (2) Check that the fuel does not contain any impurities. Check the fuel for air. Check the fuel system for blockages. Check the air filter. (e) Check the engine oil. (f) Check the engine coolant. (g) Check the engine idling speed and the maximum engine speed. (h) Check the vacuum pump. TROULESHOOTI PROCEDURE 1 CHECK WIRE HRNESS ND CONNECTOR IN EINE ROOM Check the wire harness and connector connections of following common rail system components. (1) Sensors (2) Supply pump (3) Common rail (4) Injectors (5) Turbocharger system (6) Intake and exhaust system : The wire harness and connectors are connected securely. REPIR OR REPLCE 2 RED OUTPUT DTCS (RELTI TO EINE) Connect the intelligent tester to the DLC3. Turn the intelligent tester ON. Select the following menu items: Powertrain / Engine and ECT / DTC. Read pending DTCs.

3 Service ulletin Ref. No. : EG-6008 Page : 3 of 19 Result No DTC Engine related DTCs Display (DTC Output) Proceed to REPIR OR REPLCE EINE CONTROL SYSTEM CCORDI TO DTC OUTPUT 3 CHECK DTCS OUTPUT (RELTI TO FUEL SYSTEM ND INTKE SYSTEM) Drive the vehicle according to the driving pattern indicated below to allow the ECM to set DTCs relating to malfunctions of the fuel system, EGR system and intake shutter. If any of the DTCs are set, problem areas can be identified. Switch the ECM in CHECK MODE (Refer to Repair Manual) (See Pub. No. RM1129E, page 05-34). Start and fully warm up the engine. llow the engine to idle for 5 minutes or more (to set DTCs relating to rough idling). (Procedure ) Drive the vehicle at more than 40 km/h for 30 seconds or more. (Procedure ) (e) Stop the vehicle but do not stop the engine. (f) Repeat procedures and 4 times or more. NEXT (g) (h) Stop the engine and wait for at least 10 seconds. Repeat procedures and described above (to set DTCs relating to the EGR system and intake shutter system). (i) Drive the vehicle at more than 70 km/h for at least 1 minute (to set DTCs relating to the supply pump). 4 RED OUTPUT DTCS (RELTI TO EINE) Result Select the following menu items: Powertrain / Engine and ECT / DTC. Read pending DTCs. No DTC Engine related DTCs Display (DTC Output) Proceed to REPIR OR REPLCE EINE CONTROL SYSTEM CCORDI TO DTC OUTPUT

4 Service ulletin Ref. No. : EG-6008 Page : 4 of 19 5 PERFORM FUEL LEK TEST Connect the intelligent tester to the DLC3. Start the engine and turn the intelligent tester ON. Select the following menu items: Powertrain/Engine and ECT/ctive Test/Fuel leak test. Visually check the supply pump, injector and fuel line located between the supply pump and common rail for fuel leaks. lso, perform the same check on the fuel line between the common rail and the injector. : No leakage REPIR OF REPLCE 6 CHECK FOR WHITE SME Result Rev up the engine from idling speed to 3,000 rpm several times to check whether white smoke is emitted from the exhaust pipe. Check that the intake system pipes and hoses are not excessively contaminated with engine oil. If the presence of white smoke in the exhaust gas is confirmed, there is a high possibility of mechanical problems in the turbocharger or engine. Inspection result No white smoke is emitted White smoke is emitted, or the intake system pipes and hoses are excessively contaminated with engine oil Proceed to GO TO STEP 28 7 RED VLUE USI INTELLIGENT TESTER (MF, PIM ND COMMON RIL PRESSURE) Connect the intelligent tester to the DLC3. Start and warm up the engine, and turn the intelligent tester ON. Select the following menu items: Powertrain/Engine and ECT/Data List. Select the following menu items in order and read the corresponding values displayed on the intelligent tester. (1) PIM

5 Service ulletin Ref. No. : EG-6008 Page : 5 of 19 Standard range (2) MF (3) Common Rail Pressure The /C switch and all accessory switches should be OFF with the engine fully warmed. PIM *1 MF *1, *3 Common Rail Pressure *2 Item Engine speed Standard range Description Ignition switch ON (engine stopped) Same as atmospheric pressure Idling 85 to 110 kpa 2,000 rpm (no load) 90 to 115 kpa Ignition switch ON (engine stopped) Idling 0.23 g/sec 5.0 to 6 g/sec 2,500 rpm (no load) 13.1 to 18.9 g/sec Intake manifold internal pressure is detected by turbo pressure sensor If value is 0.0 g/sec: VC circuit to MF meter is open VG circuit from MF meter is open or shorted If value is g/sec or more: E2G circuit is open Idling 25 to 36 MPa - 2,000 rpm (no load) 27 to 46 MPa 3,000 rpm (no load) 34 to 69 MPa 3,000 rpm (driving at full load) 145 MPa 4,000 rpm (driving at full load) 160 MPa - Result *1: This value is indicated when the ambient temperature is 25 C (77 F) and the atmospheric pressure is 101 kpa (758 mmhg, in.hg), and the stable boost pressure is maintained for approximately 10 seconds. *2: This value is indicated when the ambient temperature is 25 C (77 F) and the atmospheric pressure is 101 kpa (758 mmhg, in.hg), and the vehicle is accelerated for approximately 10 seconds. *3: When the mass air flow meter malfunctions, the MF output may deviate from the standard (referential) range when the engine idles and is then accelerated from 3,000 to 4,000 rpm with full throttle acceleration. Item Result Proceed to PIM within standard range PIM oth PIM and MF outside standard range Only PIM outside standard range C MF within standard range MF oth PIM and MF outside standard range Only MF outside standard range D Common Rail Pressure Common Rail Pressure within standard range Common Rail Pressure outside standard range E

6 Service ulletin Ref. No. : EG-6008 Page : 6 of 19 Proceed to "" only after having confirmed that PIM, MF and common rail pressure are all within the standard range. If both PIM and MF are outside the specified range, there must be a leakage or blockage in the intake or exhaust system. contamination on the MF sensor could result in wrong detection of the amount of air taken in, and therefore fuel injection amount will decrease. C D E GO TO STEP 27 GO TO DTC (RELTED TO INTKE MNIFOLD PRESSURE SENSOR) (SEE PU. NO. RM1129E, PGE 05-94) GO TO DTC (RELTED TO MSS IR FLOW METER) (SEE PU. NO. RM1129E, PGE 05-57) GO TO STEP 36 8 RED VLUE USI INTELLIGENT TESTER (REVISED INJECTION VOLUME #1 TO #4 ND INJECTION VOLUME) Select the following menu items in order and read the corresponding values displayed on the intelligent tester. Revised Injection Volume #1, #2, #3 and #4 (*1) Injection Volume (*2) The /C switch and all accessory switches should be OFF with the engine fully warmed. (*1) Revised Injection Volume: The revised injection volume indicates the amount of compensation for differences in combustion of each cylinder. Positive values indicate control, which corrects combustion degradation. Negative values indicate control, which corrects excessive combustion pressure. If any of the cylinders malfunctions, the fuel injection volumes for the normal cylinders will be corrected consequently. s a result, the revised injection volume may deviate from the standard range.

7 Service ulletin Ref. No. : EG-6008 Page : 7 of 19 Standard range (*2) Injection Volume: The ECM controls the fuel injection volume based on NE signal, fuel temperature, engine coolant temperature, intake air temperature, boost pressure, atmospheric pressure, EGR volume, and MF. Condition Specified condition Revised Injection Volume -2.0 to 2.0 mm 3 Injection Volume 3.0 to 8.0 mm 3 Result Revised Injection Volume Injection Volume Proceed to X X X X C : within standard range X: outside standard range C GO TO STEP 15 GO TO STEP 20 9 CHECK INJECTOR COMPENSTION CODE Follow the inspection procedure specified in Repair Manual (See Pub. No. RM1129E, page 05-1). If the injector compensation code is not correctly registered, it may cause malfunctions. : The compensation codes of the installed injector and the ECM are the same. REGISTER INJECTOR COMPENSTION CODE 10 DISCONNECT NEGTIVE TTERY TERMINL Disconnect the negative battery terminal for at least 2 minutes. Reconnect the negative battery terminal. Check whether the malfunction has been successfully repaired by performing a road test. : The malfunction has been repaired successfully.

8 Service ulletin Ref. No. : EG-6008 Page : 8 of 19 CHECK FOR INTERMITTENT PROLEMS 11 LEED IR FROM THE FUEL SYSTEM Pump the priming pump until it becomes very hard to push, to bleed air from the system. NEXT 12 CONFIRM WHETHER LCK OF POWER HS EEN SUCCESSFULLY REPIRED Check whether the lack of power has been successfully repaired by performing a road test. : The lack of power has been repaired successfully. CONTINUE FROM STEP 13 END 13 INSPECT GLOW PLUG CIRCUIT ND GLOW PLUG SSEMLY (SEE PU. NO. RM1129E, PGE 19-13) : No malfunction REPIR OR REPLCE 14 CHECK INTKE ND EXHUST SYSTEM Check for air leakage and any blockages between the air cleaner and the turbocharger. Check for air leakage and any blockages between the turbocharger and the intake manifold. : No air leakage or blockages. REPIR OR REPLCE END

9 Service ulletin Ref. No. : EG-6008 Page : 9 of PERFORM CTIVE TEST USI INTELLIGENT TESTER (INJECTION CUT FOR IDENTIFYI MLFUNCTIONI CYLINDER) Connect the intelligent tester to the DLC3. Start the engine and turn the intelligent tester ON. Select the following menu items: Powertrain/Engine and ECT/ctive Test/Injector cut #1, #2, #3 and #4, one by one. Check the four cylinders in sequence to identify any faulty cylinders by performing a power-balance inspection. : With normal cylinders, the engine idles roughly when the fuel injection is cut off. : If the idling stability variation at idling is small despite cutting off the fuel injection, the cylinder is malfunctioning. REPLCE THE MLFUNCTIONI INJECTOR 16 CHECK CYLINDER COMPRESSION PRESSURE OF MLFUNCTION CYLINDER Follow the inspection procedure specified in Repair Manual (See Pub. No. RM1129E, page 14-2). : The cylinder compression pressure is within the standard rage. COMPLETE THE NECESSRY REPIRS 17 CHECK MLFUNCTIONI CYLINDER INJECTOR FOR DEPOSIT Result Injector condition Deposits exist on the injector There is no visible deposit on the injector Remove the injector from the malfunctioning cylinder. Check the injector for any deposits. If an injector is contaminated with deposits, the fuel injection volume will deviate from the standard range. This may cause malfunctions. Proceed to REPLCE INJECTOR OF MLFUNCTIONI CYLINDER

10 Service ulletin Ref. No. : EG-6008 Page : 10 of CLEN INJECTOR Wipe away deposits from the tip of the injector. solvent or carbon removal agent will help remove the deposits easily. Exercise extreme care not to damage the injectors while wiping off the deposits. NEXT 19 RED VLUE USI INTELLIGENT TESTER (REVISED INJECTION VOLUME #1 TO #4 ND INJECTION VOLUME) Standard range (e) (f) Reinstall the injector to the cylinder head. Connect the intelligent tester to the DLC3. Turn the ignition switch to the ON position and turn the intelligent tester ON. Start the engine and warm it up. Select the following menu items: Powertrain / Engine and ECT / Data List. Select the following menu items in order and read the corresponding values displayed on the intelligent tester. Revised Injection Volume #1, #2, #3 and #4 (*1) Injection Volume (*2) The /C switch and all accessory switches should be OFF with the engine fully warmed. (*1) Revised Injection Volume: The revised injection volume indicates the amount of compensation for differences in combustion of each cylinder. Positive values indicate control, which corrects combustion degradation. Negative values indicate control, which corrects excessive combustion pressure. If any cylinder malfunctions, the fuel injection volumes for the normal cylinders will be corrected consequently. s a result, the revised injection volume may deviate from the standard range. (*2) Injection Volume: The ECM controls the fuel injection volume based on NE signal, fuel temperature, engine coolant temperature, intake air temperature, boost pressure, atmospheric pressure, EGR volume, and MF. Condition Specified condition Revised Injection Volume -2.0 to 2.0 mm 3

11 Service ulletin Ref. No. : EG-6008 Page : 11 of 19 Result Condition : within standard range X: outside standard range Specified condition Injection Volume 3.0 to 8.0 mm 3 Revised Injection Volume Injection Volume Proceed to X X X X C C REPLCE INJECTOR OF MLFUNCTIONI CYLINDER REPLCE INJECTOR OF MLFUNCTIONI CYLINDER END 20 CHECK LL CYLINDER INJECTOR FOR DEPOSIT Result Deposits found No deposit Injector Condition Check the injector for any deposits. If an injector is contaminated with deposits, the fuel injection volume will deviate from the standard range. This may cause malfunctions. Proceed to REPLCE LL INJECTORS 21 CLEN INJECTORS Wipe away deposits from the tips of the injectors. solvent or carbon removal agent will help remove the deposits easily. Exercise extreme care not to damage the injectors while wiping off the deposits.

12 Service ulletin Ref. No. : EG-6008 Page : 12 of 19 NEXT 22 RED VLUE USI INTELLIGENT TESTER (REVISED INJECTION VOLUME #1 TO #4 ND INJECTION VOLUME) Standard range (e) (f) Reinstall the injector to the cylinder head. Connect the intelligent tester to the DLC3. Turn the ignition switch to the ON position and turn the intelligent tester ON. Start the engine and warm it up. Select the following menu items: Powertrain/Engine and ECT/Data List. Select the following menu items in order and read the corresponding values displayed on the Intelligent Tester. Revised Injection Volume #1, #2, #3 and #4 (*1) Injection Volume (*2) The /C switch and all accessory switches should be OFF with the engine fully warmed. (*1) Revised Injection Volume: The revised injection volume indicates the amount of compensation for differences in combustion of each cylinder. Positive values indicate control, which corrects combustion degradation. Negative values indicate control, which corrects excessive combustion pressure. If any cylinder malfunctions, the fuel injection volumes for the normal cylinders will be corrected consequently. s a result, the revised injection volume may deviate from the standard range. (*2) Injection Volume: The ECM controls the fuel injection volume based on NE signal, fuel temperature, engine coolant temperature, intake air temperature, boost pressure, atmospheric pressure, EGR volume, and MF. Condition Specified condition Revised Injection Volume -2.0 to 2.0 mm 3 Injection Volume 3.0 to 8.0 mm 3 Result Revised Injection Volume Injection Volume Proceed to X X X X C : within standard range

13 Service ulletin Ref. No. : EG-6008 Page : 13 of 19 X: outside standard range C REPLCE INJECTOR OF MLFUNCTIONI CYLINDER REPLCE INJECTOR OF MLFUNCTIONI CYLINDER END 23 CHECK EGR VLVE Follow the inspection procedure specified in Repair Manual (See Pub. No. RM1129E, page 12-3). : No malfunction. If the EGR valve is not closing properly during full acceleration, part of the exhaust gases will return to the intake, and thus reducing the exhaust gas flow to the turbocharger. Consequently, the turbocharger cannot reach the specified speed that results in lower intake pressure. The EGR valve can be checked by performing ctive Test / EGR Step POS operation with intelligent tester. NOTICE: If the EGR valve is forcibly closed by the intelligent tester, MF reading must be increased. If the EGR valve is forcibly opened by the intelligent tester, MF reading must be decreased. REPIR OR REPLCE 24 CHECK WHETHER OR NOT THE EGR PSSGE IS CLOGGED Carefully check that the EGR passage via the following components is not clogged.

14 Service ulletin Ref. No. : EG-6008 Page : 14 of 19 Gasket EGR Cooler ssembly EGR Pipe Connector Gasket EGR Valve ssembly Non-reusable part E01 (1) EGR cooler (2) EGR channel through the side of the cylinder head (3) EGR valve (4) Intake manifold EGR port Generally the coldest point of the EGR passage is the area most likely to clog. 25 CHECK INTKE SHUTTER Follow the inspection procedure specified in Repair Manual (See Pub. No. RM1129E, page 05-78). : No malfunction. If the intake shutter remains partially closed when the engine speed is increased from the idle speed to 2,500 rpm or more, the air delivered by the turbocharger cannot flow smoothly in to the intake, resulting in lack of power. REPIR OR REPLCE 26 CHECK INTERCOOLER Carefully check the intercooler for dirt, mud or leaves which may have blocked the fins of the cooler unit. Check both the front and rear surface of the cooler unit. If the intercooler is blocked, charging air cannot be cooled properly and the mass of the intake air will drop, resulting in lack of power.

15 Service ulletin Ref. No. : EG-6008 Page : 15 of 19 : Fins are clean and free from heavy dust or mud. NOTICE: For cleaning the intercooler do not use a steam cleaner or high-pressure fluid cleaner. Use of these may damage the fins on the heat exchanger surface. THOROUGHLY CLEN THE INTERCOOLER SSEMLY 27 CHECK INTKE ND EXHUST SYSTEM Check for air leakage and any blockages between the air cleaner and the turbocharger. Check for air leakage and any blockages between the turbocharger and the intake manifold. : No air leakage or blockages REPIR OR REPLCE 28 CHECK TUROCHRGER (MECHNICL PROLEM) Disconnect the air cleaner hose. Use a mirror to visually check the turbocharger for any mechanical problems. When the engine is cold, check that the impeller of the turbocharger rotates smoothly, and confirm whether there is any damage to it. : No problem. REPIR OR REPLCE 29 CHECK VCUUM HOSE CONNECTIONS (TUROCHRGER - VRV FOR TUROCHRGER - VCUUM PUMP) Check that the vacuum hoses are installed correctly. Check the vacuum hoses for any cracks or damages. Check the vacuum hoses for air leaks or any blockages. : The vacuum hoses are appropriately connected to each other.

16 Service ulletin Ref. No. : EG-6008 Page : 16 of 19 REPIR OR REPLCE VCUUM HOSE 30 INSPECT VCUUM REGULTI VLVE (VRV) Using a three-way connector, connect a vacuum gauge to the hoses between the VRV (Vacuum Regulating Valve) and turbocharger. Warm up the engine and make sure that the coolant temperature is 75 C or more. Check the vacuum at idle speed. Standard: 0 kpa (0 mmhg) to 50 kpa (375 mmhg) Gradually increase the engine speed and check any change in vacuum. Standard: The vacuum decreased in accordance with raised engine speeds. REPIR OR REPLCE VCUUM REGULTI VLVE 31 INSPECT TUROCHRGER CTUTOR pply a high negative pressure (minimum: -60 kpa) to the turbocharger actuator using a vacuum pump. llow the negative pressure in the actuator to decrease gradually. Measure the turbocharger actuator stroke from the initial position of the actuator rod. : The turbocharger actuator stroke conforms to the standard level. Standard value list of Turbocharger actuator stroke: pplied pressure 50.7 kpa 30.7 kpa - Stroke 0.20 mm ( in.) 5.00 mm ( in.) - Vane position Fully closed Half open Fully open REPLCE TUROCHRGER 32 REPLCE FRONT EXHUST PIPE SSEMLY

17 Service ulletin Ref. No. : EG-6008 Page : 17 of 19 NEXT 33 CONFIRM WHETHER LCK OF POWER HS EEN SUCCESSFULLY REPIRED Standard range (e) Connect the intelligent tester to the DLC3. Turn the ignition switch to the ON position and turn the intelligent tester ON. Start the engine and warm it up. Select the following menu items: Powertrain/Engine and ECT/Data List. Select the following menu items in order and read the corresponding values displayed on the intelligent tester. (1) PIM (2) MF The /C switch and all accessory switches should be OFF with the engine fully warmed. PIM *1 MF *1, *3 Common Rail Pressure *2 Item Engine speed Standard range Description Ignition switch ON (engine stopped) Same as atmospheric pressure Idling 85 to 110 kpa 2,000 rpm (no load) 90 to 115 kpa Ignition switch ON (engine stopped) Idling 0.23 g/sec 5.0 to 6 g/sec 2,500 rpm (no load) 13.1 to 18.9 g/sec Intake manifold internal pressure is detected by turbo pressure sensor If value is 0.0 g/sec: VC circuit to MF meter is open VG circuit from MF meter is open or shorted If value is g/sec or more: E2G circuit is open Idling 25 to 36 MPa - 2,000 rpm (no load) 27 to 46 MPa 3,000 rpm (no load) 34 to 69 MPa 3,000 rpm (driving at full load) 145 MPa 4,000 rpm (driving at full load) 160 MPa *1: This value is indicated when the ambient temperature is 25 C (77 F) and the atmospheric pressure is 101 kpa (758 mmhg, in.hg), and the stable boost pressure is maintained for approximately 10 seconds. *2: This value is indicated when the ambient temperature is 25 C (77 F) and the atmospheric pressure is 101 kpa (758 mmhg, in.hg), and the vehicle is accelerated for approximately 10 seconds. *3: If the mass air flow meter malfunctions, the MF output may deviate from the standard (referential) range when the engine idles and is accelerated from 3,000 to 4,000 rpm with full throttle acceleration. -

18 Service ulletin Ref. No. : EG-6008 Page : 18 of 19 : The values are within the standard range. GO TO STEP 34 END 34 REPLCE EXHUST MNIFOLD CONVERTER SSEMLY NEXT 35 CONFIRM WHETHER LCK OF POWER HS EEN SUCCESSFULLY REPIRED (e) (f) Connect the intelligent tester to the DLC3. Turn the ignition switch to the ON position and turn the intelligent tester ON. Start the engine and warm it up. Select the following menu items: Powertrain/Engine and ECT/Data List. Select the following menu items in order and read the corresponding values displayed on the intelligent tester. (1) PIM (2) MF Refer to step 33 where all values are listed for standard range lists of PIM, MF and Common Rail Pressure. : The values are within the standard range. REPLCE TUROCHRGER END 36 CHECK ND REPLCE FUEL FILTER ELEMENT NEXT 37 CONFIRM WHETHER LCK OF POWER HS EEN SUCCESSFULLY REPIRED Connect the intelligent tester to the DLC3.

19 Service ulletin Ref. No. : EG-6008 Page : 19 of 19 (e) (f) Turn the ignition switch to the ON position and turn the intelligent tester ON. Start and warm up the engine. Select the following menu items: Powertrain/Engine and ECT/Data List. Select the following menu items in order and read the corresponding values displayed on the intelligent tester. (1) PIM (2) MF Refer to step 34 where all values are listed for standard range lists of PIM, MF and Common Rail Pressure. : The values are within the standard range. GO TO STEP 38 END 38 INSPECT FUEL PRESSURE SENSOR (SEE PU. NO. RM1129E, PGE FUEL RIL PRESSURE SENSOR CIRCUIT) REPLCE COMMON RIL SSEMLY 39 INSPECT SUPPLY PUMP SSEMLY (SEE PU. NO. RM1129E, PGE FUEL RIL PRESSURE SENSOR CIRCUIT) REPLCE FUEL PUMP SSEMLY END