RENR5042-02 155 Troubleshooting Section g01001203 Illustration 77 Harness connector for the injectors Test Step 1. Inspect the Electrical Connectors and the Wiring Electrical shock hazard. The electronic unit injec- tor system uses 90-120 volts. A. Turn the key switch to the OFF position. A strong electrical shock hazard is present if the key switch is not turned off. B. Thoroughly inspect the J2/P2 ECM connector. Thoroughly inspect the valve cover connector. Refer to Troubleshooting, “Electrical Connectors - Inspect” for details. g01099568 Illustration 76 P2 ECM connector C. Perform a 45 N (10 lb) pull test on each of the wires that are associated with injector solenoids.
(P2-99) “Injector 5 & 6 supply” (P2-104) “Injector 1 & 2 supply” (P2-105) “Injector 6 return” (P2-106) “Injector 3 return” (P2-107) “Injector 5 return” (P2-108) “Injector 4 return” (P2-115) “Injector 3 & 4 supply” (P2-116) “Injector 1 return” (P2-118) “Injector 2 return” D. Check the allen head screw on each ECM connector for the proper torque. Refer to Troubleshooting, “Electrical Connectors - Inspect” for the correct torque values. E. Check the harness and wiring for abrasion and for pinch points from the valve cover connector to the ECM. Expected Result:
All connectors, pins, and sockets are completely coupled and/or inserted and the harness and wiring are free of corrosion, of abrasion, or of pinch points.