Question about 1997 Chevrolet Tahoe

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I have replaced all o2 sensors on car, also have changed fuel injectors. and some point someone changed fuel pump. after a couple of months the light will come back on and set the same codes , it starts missing and plugs on that side are black, it is always the same side

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  • mike mountain May 25, 2011

    what are the codes?

  • Jeremy W.
    Jeremy W. May 25, 2011

    what codes is it setting?

  • Johnny Tumlinson May 25, 2011

    Please clarify your issues.

    What codes are being thrown.
    What cylinders are the spark plugs black?

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  • Chevrolet Master
  • 2,620 Answers

Check fuel pressure regulator.

Posted on May 26, 2011

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