ANSWERS: 5
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It could need the valves set.Sometimes a lazy mechanic will just bolt down the rocker arms without running the overhead.
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Detroit have problems with the injector hatness. Even if they ohme out okay. Harnes comes complete, get a valvecover gasket also. You are looking at $300
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Question? was the injectors NEW or Rebuilt? and if rebuilt by whom? Sounds to me like you have a bad injector!
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Aside from the other excellent answers, check to make sure the ECM was updated to be calibrated to the new injectors.
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if the ecm was recently reprogrammed for any reason it was lonoxed which is mandated by the federal government for epa reasons and they will do this when its cold and block heater not plugged up i have seen this several times and you shouldnt be concered
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