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  1. Abs/traction off/ parking brake light after pcm install

    PCM's & Tuning
    Good evening all. I'm looking to see if you guys have any answers or solutions to my problem and hopefully i posted this in the correct forum section. I have an 04 impala ss (68xxx miles) with an intake, and 3.4 pulley. I just installed some autolige 104's, 3" zzp downpipe, and mail tuned pcm...