Fuel Injector Wiring Harness: Service and Repair

FUEL CHARGING WIRING HARNESS

REMOVAL

WARNING: Do not smoke or carry lighted tobacco or open flame of any type when working on or near any fuel related components. Highly flammable mixtures are always present and may be ignited. Failure to follow these instructions may result in personal injury.

1. Disconnect the battery ground cable.
2. Disconnect the air cleaner outlet tube.







3. Disconnect the 42 pin connector.







4. Separate the wiring harness retainers from the dash panel.







5. Disconnect the following connectors:
- Throttle position (TP) sensor
- Idle air control (IAC) valve







6. Disconnect the following connections:
- Four ignition coils
- Four fuel injectors
- Positive crankcase ventilation (PCV) hose from valve cover.







7. Disconnect the following connectors:
- RH radio ignition interference capacitor
- Engine coolant temperature (ECT) sensor







8. Disconnect the 16 pin connector
9. Raise the vehicle.







10. Disconnect the crankshaft position (CKP) sensor electrical connector.







11. Disconnect the A/C compressor clutch electrical connector.







12. Disconnect the RH heated oxygen sensor (HO2S) electrical connector.







13. Disconnect the LH heated oxygen sensor (HO2S) electrical connector.
14. Lower the vehicle.







15. Disconnect the coolant reservoir electrical connector.







16. Disconnect the following connectors:
- Camshaft position (CMP) sensor
- LH radio ignition interference capacitor







17. Separate the wiring harness from the power steering reservoir bracket.







18. Disconnect the generator connectors:
- Battery power supply wire
- Voltage regulator







19. Disconnect the following connectors:
- LH fuel injectors
- LH ignition coils







20. Disconnect the following connectors:
- Exhaust vacuum regulator (EVR)
- Ground Wire







21. Disconnect the EGR pressure transducer electrical connector.







22. Disconnect the fuel pressure sensor electrical connector and the vacuum hose.







23. Slide cover up and remove the nut and the power distribution box battery supply wire.







24. NOTE: These two connectors are located under the power distribution box.

Disconnect the two connectors.







25. Disconnect the main vacuum hose.







26. Disconnect the vacuum lines







27. Squeeze the two locking tabs, and remove the accelerator cable and the speed control cable (if equipped) from the bracket and position aside.







28. Separate the fuel charging wiring from the rear of the intake manifold and remove from the vehicle.

INSTALLATION







1. Position the fuel charging wiring in the vehicle and attach to the rear of the intake manifold.







2. NOTE: Make sure the locking clips are fully engaged into the bracket.

Reposition the accelerator cable and the speed control cable (if equipped) and install the cables into the bracket.







3. Connect the vacuum lines.







4. Connect the main vacuum hose.







5. Connect the two connectors.
6. Install the battery supply wire, tighten the nut and close the cover.







7. Connect the fuel pressure sensor and the vacuum hose.







8. Connect the EGR pressure transducer electrical connector.







9. Connect the following connectors:
- Ground wire
- Exhaust vacuum regulator (EVR)







10. Connect the following connectors:
- LH fuel injectors
- LH ignition coils

11. Connect the following generator connectors:
- Voltage regulator
- Battery supply







12. Install the wiring harness retainers to the power steering reservoir bracket.







13. Connect the following connectors:
- LH radio ignition interference capacitor
- CMP sensor







14. Connect the coolant reservoir electrical connector.
15. Raise the vehicle.







16. Connect the LH (HO2S) electrical connector.







17. Connect the RH (HO2S) electrical connector.







18. Connect the A/C compressor clutch electrical connector.







19. Connect the CKP electrical connector.
20. Lower the vehicle.







21. Connect the 16 pin connector.







22. Connect the following connectors:
- ECT sensor
- RH radio ignition interference capacitor







23. Connect the following connectors:
- PCV hose
- Four fuel injectors
- Four ignition coils







24. Connect the following connectors:
- IAC valve
- TP sensor







25. Install the wiring harness retainers to the dash panel.
26. Connect the 42 pin connector.
27. Connect the air cleaner outlet tube.
28. Connect the battery ground cable.