Fuel Injector Wiring Harness: Service and Repair
FUEL CHARGING WIRING HARNESSREMOVAL
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 can be ignited, resulting in possible personal injury.
- Fuel in the fuel system remains under high pressure even when the engine is not running.
- Before working on or disconnecting any of the fuel lines or fuel system components, the fuel system pressure must be relieved.
1. Remove the throttle body (TB) spacer.
2. Disconnect the RH radio ignition interference capacitor electrical connector.
3. Working from the front of the engine, disconnect the following electrical connections:
1 engine coolant temperature (ECT) sensor.
2 LH radio ignition interference capacitor.
3 field circuit check connect.
4 both plug-in connectors at the generator.
4. Disconnect the cylinder head temperature (CHT) sensor electrical connector.
5. Disconnect the camshaft position (CMP) sensor electrical connector.
6. Disconnect the electrical connectors.
1 Disconnect the 16-pin electrical connector.
2 Disconnect the 42-pin electrical connector.
7. Disconnect the engine knock sensor (KS) electrical connector.
8. Disconnect the RH heated oxygen sensor (HO2S) electrical connector.
9. From underneath the vehicle, disconnect the A/C compressor electrical connector.
10. Disconnect the crankshaft position (CKP) sensor electrical connector.
11. Disconnect the oil pressure sensor electrical connector.
12. Disconnect the LH HO2S electrical connector.
13. From the top of the engine, disconnect the five LH fuel injector electrical connectors and the five ignition coil electrical connectors.
14. Disconnect the five RH fuel injector electrical connectors and the five ignition coil electrical connectors. Carefully remove the fuel charging wiring harness.
INSTALLATION
1. To install, reverse the removal procedure.