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delphi fuel injection pump setting adjustment

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Rotary Fuel Pumps Timing to engine steps

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SMALL | MEDIUM | LARGE Previous Next Fuel Injection Pump (Distributor Type) The fuel injection pumps, Bosch® VE, Lucas CAV DPA, Stanadyne DB4, Lucas CAV DPS, and Delphi DP210, are rotary distributor pumps. These pumps perform the four basic functions of: 1. Producing the high fuel pressure required for injection 2. Metering the exact amount of fuel for each injection cycle 3. Distributing the high-pressure, metered fuel to each cylinder at the precise time 4. Varying the timing relative to engine speed. SMALL | MEDIUM | LARGE Previous Next Distributor-Type Pump Governor Balance between the governor flyweights and control lever position controls the metering of the amount of fuel to be injected. The fuel injection pump governor performance and setting can affect engine power. Special equipment and qualified personnel are required to verify governor performance. If the seals are broken on the external Bosch® VE adjustment screw, the fuel rate can, perhaps, be out of adjustment The Lucas CAV DPA/DPS fuel injection pump uses a coded spring connection to change the governor setting. Incorrect connection of the governor spring can affect performance. Adjustments and rating changes are described in the Master Repair Manual, Injector Pumps and Injectors, Manual Shutdown Levers Both fuel injection pumps are equipped with mechanical shutdown levers. These levers are spring-loaded in the run position. Not all applications will use these manual shutdown controls and there will be no cable or rod connected to the lever. NOTE: Partial actuation of the mechanical shutdown levers will affect fuel flow and engine power. SMALL | MEDIUM | LARGE Previous Next Advance Timing Mechanism Regulated pressure produced by a vane supply pump in both fuel injection pumps is used to advance the timing as the engine speed increases. A return spring is used to retard the timing as the engine speed is reduced. If a spring breaks, the timing will go to the advance position, resulting in torque loss, fuel knock, and possible engine overheating. Retarded (late) timing will result in torque loss, high fuel consumption, and white to black smoke. SMALL | MEDIUM | LARGE Previous Next The Lucas CAV DPA/DPS advance timing mechanism uses a check ball in the circuit which, if omitted during assembly, will result in no timing advance. If the fuel injection pump has been replaced or the mechanism has been removed to fix a leak, the problem can be that the check ball is missing

1998 Dodge Grand Caravan Fuel Pump Relay Removal And Installation Manual

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Fuel Pump Relay 1. Remove fuel pump relay from power distribution center at driver’s side front corner of engine compartment, near the battery. Note terminal identification on fuel pump relay. See Fig. 6 . 2. To check fuel pump relay resistance, use ohmmeter and check resistance between terminals No. 85 and 86 on fuel pump relay. Replace fuel pump relay if resistance is not 70-80 ohms. 3. To check fuel pump relay operation, connect ohmmeter between terminals No. 30 and 87A on fuel pump relay. See Fig. 6 . Ohmmeter should indicate continuity between terminals No. 30 and 87A on fuel pump relay. 4. Connect ohmmeter between terminals No. 30 and 87 on fuel pump relay. See Fig. 6 . Ohmmeter should indicate no continuity between terminals No. 30 and 87 on fuel pump relay. 5. Connect 16-gauge jumper wire between negative battery terminal and terminal No. 85 on fuel pump relay. Connect 16-gauge jumper wire between positive battery terminal and terminal No. 86 on fuel pump relay. 6. Fuel pump relay should now be energized. No continuity should now exist between terminals No. 30 and 87A on fuel pump relay. Continuity should now exist between terminals No. 30 and 87 on fuel pump relay. Disconnect jumper wires. Replace fuel pump relay if defective. 7. If fuel pump relay or wiring circuit failure exists, a Diagnostic Trouble Code (DTC) will be stored in Powertrain Control Module (PCM). See appropriate G – TESTS W/CODES article. Fig. 6: Identifying ASD Relay & Fuel Pump Relay Terminals Courtesy of CHRYSLER CORP.

1993 Ford Escort CIRCUIT TEST J – FUEL PUMP CIRCUIT (RELAY AND INERTIA SWITCH)

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resistance between test pin No. 22 and test pins No. 40 and 60. If resistance is less than 10,000 ohms, repair short circuit and repeat QUICK TEST. If resistance is 10,000 ohms or more, go to step 5). 5)Check Fuel Pump Circuit Continuity Turn ignition off. Leave fuel pump relay and PCM disconnected. Measure resistance between FUEL PUMP circuit at fuel pump relay wiring harness connector and test pin No. 22 at breakout box. If resistance is less than 5 ohms, replace PCM and repeat QUICK TEST. If resistance is 5 ohms or more, repair open circuit and repeat QUICK TEST. 10)Code 95/542 A KOEO Code 95/542 indicates one of the following conditions: Engine Starts: * Fuel pump secondary circuit shorted to power. * Fuel pump relay contacts always closed. * Open FPM circuit between PCM and junction to POWER-TO-PUMP circuit. * Left/front HO2S short to power (dual HO2S applications). * Faulty PCM. No Start: * IFS switch circuit open or not reset. * Open circuit in or between PCM and fuel pump. * Faulty ground connection at fuel pump. * Faulty fuel pump. If engine starts, go to step 11). If engine does not start, go to step 15). 11)Check Fuel Pump Operation Turn ignition on. Wait 5 seconds. Listen for fuel pump operation. If fuel pump is off, go to step 13). If fuel pump is on, go to step 12). 12)Check For Fuel Pump Relay Always Closed Turn ignition off. Disconnect fuel pump relay. Turn ignition on. If fuel pump is off with relay disconnected, replace fuel pump relay and repeat QUICK TEST. If fuel pump is on with relay disconnected, repair short to power in POWER-TO-PUMP or FPM circuit. (For models with relay block, also check fuel pump prime plug circuit). Repeat QUICK TEST. 13)Check Continuity Of Fuel Pump Monitor (FPM) Circuit Turn ignition off. Disconnect PCM 60-pin connector. Inspect and repair any damaged terminals. Install EEC-IV Breakout Box (T83L-50-EEC-IV) , leaving PCM disconnected. Disconnect fuel pump relay. Measure resistance between test pin No. 8 (No. 19 on Escort, and Tracer) at breakout box and POWER-TO-PUMP circuit at fuel pump relay wiring harness connector. If resistance is less than 5 ohms, go to step 25) (dual HO2S) or replace PCM and repeat QUICK TEST (single HO2S). If resistance is 5 ohms or more, repair open circuit and repeat QUICK TEST

1997-1998 Buick Regal GS & Pontiac Grand Prix GTP with L67 3.8L V6 Engine Fuel Pump Resistor Service Procedure

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The following are instructions for removing the fuel pump resistor from its original mounting location on the lower right front body rail as shown in Figure 1, and replacing it with a new fuel pump resistor and cover in new location shown in Figure 2. The new location is on the front of dash sheet metal (3) at the rear of the engine compartment, inboard or to the left of the alternator (4). The passenger or right side windshield wiper arm (5) and stop (6) are called out for reference purposed only. 1. Turn the steering wheel to the full right position. 2. Open the hood and disconnect the negative battery cable. 3. Remove the diagonal brace (1) from over the windshield washer solvent reservoir by removing the two bolts (2) that attach it to the radiator support and the one bolt (3) that attaches it to the strut tower. Refer to Figure 3 4. Remove the two plastic push-in retainers (1) that attach the windshield washer solvent reservoir (2) to the radiator support (3) and the one nut (4) that attaches it to the strut tower (5). Refer to Figure 4. 5. Reposition the reservoir for access to the area rearward of the battery. 6. Raise the vehicle on a hoist. 7. At the right front wheel opening, remove the three screws that attach the inner fender splash shield to the front fascia at the wheel opening and the two screws that attach it to the bottom of the fascia. Refer to Figure 5. 8. Reposition the inner fender splash shield (1) to access the fuel pump resistor (2). Refer to Figure 1 at the beginning of this procedure. 9. Unclip the fuel pump resistor electrical connector from the body and disconnect the connector. 10. Remove the 10mm hex head bolt attaching the fuel pump resistor to the body and discard both the bolt and the resistor.

2000 Toyota Celica GT-S L4-1762cc 1.8L FUEL PUMP ASSEMBLY Removal and Installation Instructions

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Protect the disconnected fuel tube from damage and foreign material by covering it with a plastic bag. a. Remove the 8 bolts and fuel tank vent tube set plate. b. Pull out the fuel pump assembly. NOTE: Do not damage the fuel pump filter. Be careful that the arm of the sender gauge should not bent. c. Remove the gasket from the pump assembly. a. Install the new gasket to the fuel pump assembly. b. Install the fuel pump assembly to the fuel tank . NOTE: Do not damage the fuel pump filter. Be careful that the arm of the sender gauge should not bent. c. Install the 8 bolts and fuel tank vent tube set plate from the fuel tank . Torque: 4.0 Nm (40 kg.cm, 35 in.lb) a. Clean up around the fuel tube. b. Connect the fuel tube and emission tube to the fuel pump assembly. c. Connect the tube joint clip to the fuel suction plate. HINT: Start the engine, check for fuel leakage