The motor will run, just not right. I pulled the injector log , turned the ignition on and none of the 4 injectors will spray. I can ground the wire that is not hot and it will spray. To clear things up. The injector plug has 2 wires, red with yellow stripe,and white with other color stripes. The red yellow is hot on ignition and the other has no ground or hot,but when I touch it to ground the injector sprays. All the wires run to the front of the engine to the module. Is the module that sends the pulse to the injectors a suspect ? Any help would be greatly appriciated
If you get a test light and hook your lead to 12v positive and probe the ground side of the injector lead and key on/start engine, see if your test light lights up. I think that once the rail is pressurized the injectors pulse before engine starts up. I would also check all grounds for the ECU and injector driver(s), I don't know what HP your talking about.
DO YOU HAVE: GOOD COMPRESSION, PROPERLY TIMED SPARK, PROPER FUEL AIR MIXTURE?
So if I have the injector log off and I turn on the key the injectors should spray briefly before the engine starts? These are not spraying at any time. When I pump the bulb and turn on the key it will blow off the top injector, but it does not continue to spray fuel out. If the fuel pump stops working will it cause it not to spray??