anybody help

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my 1-3and 5 injectors want work still. got new ecu still the same any now what i can do. bout ready to give up. thanks

[mello88]

Check power on your injector harness and look for some shorts.. If you're getting the same problem with 2 different ECUs then either those injectors are toast (unlikely) or you have wiring shorts/problems somewhere. Do you get +12v to all the injectors? Do you get -12v from the ECU on each injector when you spin the CAS by hand?

[s13point5]

im gonna guess and say its HIGHLY unlikely that those 3 injectors would go out at the same time unless they were known to be bad and put on the rail by the previous owner. more than likely its the wiring.

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yea i got 12volts on both sides of injector plug when spinin the cas. whats that brown plug in the harness?

[mello88]

you should have +12v to all injector plugs whenever the key is on. You get -12v on each injector as you spin the CAS, that's how the computer fires the injectors by grounding them out. Is that what you mean by 12v on both sides of each plug? Which brown plug are you referring to, take a pic?

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its the brown one down at the ecu. its like got a cap on it and its taped up in the harness. ill get a pic.

[craz4240]

it's not that.

Whip out the fsm and the multimeter and check continuity between the ecu and each injector.

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i tryd to download one but it want come up. can i use a ecu pinout?

[craz4240]

Yep each injector has it's own signal wire and they all share the same power wire ie: the wires that differentiate between each injectors are the signal wires and the wire that is like on each is power.

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i think i need a new harness. i cut all the tape off and it had alot of spliced wires in it. know any one that mite have one?