Fuel Injector Wiring Harness: Service and Repair

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. Position the power steering pump out of the way.
2. Remove the air cleaner outlet tube.
3. Disconnect the battery ground cable.
4. Remove the mounting arm and pivot shaft.







5. Disconnect the:
^ Idle Air Control (IAC) valve.
^ Throttle Position (TP) sensor.







6. Disconnect the eight ignition coils.







7. Disconnect the eight fuel injector electrical connectors.







8. On natural gas engines, disconnect the temperature sensor.







9. Disconnect the fuel pressure sensor.
10. On natural gas engines, disconnect the main fuel shutoff solenoid connector.







11. Disconnect the engine bulkhead connectors







12. Disconnect the radio ignition interference capacitor.







13. Disconnect the LH heated oxygen sensor connector and the transmission electrical connector.







14. Disconnect the RH heated oxygen sensor connector.







15. Disconnect the EGR transducer.







16. Disconnect the Evaporative Emission (EVAP) canister purge valve.







17. Disconnect the EGR vacuum regulator solenoid







18. Disconnect the connector.







19. Disconnect the A/C cycling switch.
20. Raise the vehicle.







21. Disconnect the Crankshaft Position (CKP) sensor.







22. Disconnect the A/C compressor.







23. Disconnect the:
^ engine oil pressure sensor.
^ Power Steering Pressure (PSP) switch.
24. Lower the vehicle.
25. 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. Raise the vehicle.







3. Connect the:
^ engine oil pressure sensor.
^ power steering pressure switch.







4. Connect the A/C compressor.







5. Connect the crankshaft position sensor.
6. Install the power steering pump.
7. Lower the vehicle.







8. Connect the A/C cycling switch.







9. Connect the connector







10. Connect the EGR vacuum regulator solenoid.







11. Connect the evaporative emission canister purge valve.







12. Connect the EGR transducer.







13. Connect the RH heated oxygen sensor connector.







14. Connect the LH heated oxygen sensor connector and the transmission electrical connectors.







15. Connect the radio ignition interference capacitor







16. Connect the engine bulkhead connectors.
17. Connect the main fuel shut-off solenoid connector.







18. Connect the fuel pressure sensor connector.







19. Connect the fuel temperature sensor connector.







20. Connect the eight fuel injector electrical connectors.







21. Connect the eight ignition coils.







22. Connect the:
^ idle air control valve.
^ throttle position sensor.
23. Install the mounting arm and pivot shaft.
24. Connect the battery ground cable.
25. Install the air cleaner outlet tube.