Question about 1992 GMC Sierra K1500

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Injectors not firing

I have a '92 GMC 1500, and everything is going fine and the other day my injectors just shut down for no apparent reason. The fuel pump is going all the way up to the Throttle body, but it isn't going thru the injectors. Please help?

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  • litbug01274 Feb 07, 2009

    The Injectors are brand new and everything is going fine, but there is no power going to the injector lines to op[en them up, where is the Relay at so I can check that too?

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Try the ecm fuse under dash i had that happen to me once

Posted on Mar 13, 2009

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Sounds like the injector need scleaning or look at

Posted on Feb 07, 2009

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