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    Erratic Idle - Possible Symptoms & Fix (350 TBI)

    I received a Code 44 on my 89 C1500. I have done all the checks for vacuum leaks, fuel pressure issues, etc. I have replaced the fuel pump and filter, the injectors, IAC, EGR and everything else I have been advised to do. The truck idles erratically, and almost completely stalls while driving...
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