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Thread: injector problem

  1. #1

    injector problem

    I have a 1994 Chevy 1/2 ton 1/2 of the injectors are working 1/2 are not there is continuity between where the wires for the injectors hook into the computer and where they plug into the injectors. But no power to the injector, any ideas??? does the truck have a bad computer??
    yes I checked fuses and relays. no breaks in the wires. all connections are clean.

    Thanks for your time and help

  2. #2
    Senior Member RACING JUNKIE
    Join Date
    Sep 2007
    Posts
    4,143
    I had a 1994 chevy half ton and it had a throttle body...didn't know they had anything else. Is it stock?

  3. #3
    Senior Member RACING JUNKIE
    Join Date
    Sep 2007
    Location
    orland pk il
    Posts
    2,429
    DID YOU CHECK WITH NOID LIGHT? LIKE TOD SAID THIS SHOULD BE TBI, (TWO INJECTORS IN UNIT)

  4. #4
    Senior Member MASTER BUILDER
    Join Date
    Oct 2007
    Location
    Staunton,VA.
    Posts
    249

    injector

    HMMM! Guess he must of forgot about this ONE.

  5. #5
    Senior Member DYNO OPERATOR
    Join Date
    Aug 2005
    Location
    Rifle Colorado
    Posts
    585
    The power to the injectors is supplied by a switched ign source. The ecm provides the ground path to pulse the injectors. Make sure you have power to both injectors key on engine off with a test light.. If so, hook your test light to the wires of the suspect injector and crank it. The light should pulse......


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