DELPHI EFI 5. If no voltage is observed, connect red lead of meter to red wire of plug and black lead to a good ground while key is still ON. 6. If voltage is between 7 and 14, turn key switch OFF and connect an ohmmeter between terminals on pump to check for continuity. a. If there was no continuity between pump terminals, replace fuel pump. b. If voltage was below 7, test wiring harness. 7. If voltage at plug was good, and there was continuity across pump terminals, reconnect plug to pump, making sure you have a good connection. Turn on key switch and listen for pump to activate. a. If pump starts, repeat steps 2 and 3 to verify correct pressure. b.
If pump still does not operate, replace it. High Pressure Fuel Line +LJKSUHVVXUHIXHOOLQHLVPRXQWHGWRLQWDNHPDQLIROG1RVSHFLїFVHUYLFLQJLVUHTXLUHGXQOHVVRSHUDWLQJFRQGLWLRQV indicate that it needs replacement. Thoroughly clean area around all joints and relieve any pressure before starting any disassembly.Detach by removing two mounting screws, wire ties, and injector retaining clips. Purge Port and Vent Hose Assembly 1RVSHFLїFVHUYLFLQJLVUHTXLUHGIRUYHQWKRVHDVVHPEO\RUSXUJHSRUWXQOHVVRSHUDWLQJFRQGLWLRQVLQGLFDWH replacement is required. All components are serviced individually. Abrasion sleeves on hoses should be reused or replaced when servicing vent hoses.
Please note vent hose routing and replicate after service or component UHSODFHPHQWWRSUHYHQWSLQFKLQJRUDEUDVLRQRIYHQWKRVHV2QO\.RKOHUUHSODFHPHQWSDUWVFDQEHXVHGEHFDXVHїWWLQJ LVVSHFLїFWRV\VWHPDQGPXVWEHPDLQWDLQHG9LVLW.RKOHU(QJLQHVFRPIRUUHFRPPHQGHG.RKOHUUHSODFHPHQWSDUWV Throttle Body/Intake Manifold Assembly NOTE: ECU Reset is required if throttle body is replaced. Throttle body is serviced as an assembly, with throttle shaft, TPS, throttle plate, and idle speed adjusting screw installed. Throttle shaft rotates on needle bearings (nonserviceable), capped with seals to prevent air leaks. TROUBLESHOOTING Troubleshooting Guide Condition Possible Cause 37 24 690 01 Rev.
D KohlerEngines.com Engine Starts Hard or Fails to Start When Cold. Fuel pump not running. Faulty spark plugs. Old/stale fuel. Incorrect fuel pressure. Crankshaft position sensor loose or faulty. TPS set incorrect (ECU Reset and TPS Initialitzation). TPS faulty. Engine temp sensor faulty. Faulty coils. Low system voltage. Faulty injectors. Faulty battery. Loose or corroded connections.