Medium and Heavy Trucks
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Hi my name is***** will be glad to try to help. Check that the inline ECM fuse is good between the battery box and the ECM has both power and ground and the engine light comes on and cycles with the key on as it should. If okay, and the fuel supply pressure to the pump is good, verify there is no damage to the harness and let me know what you have logged for fault codes in the ECM.