rich idle

  1. help me!! head gasket? o2 senssor? MAF?

    Engine & Transmission
    my car started off by idling at 2k rps and that led to getting a new TPS which brought my idle back down to 950rps after a few adjustments. I also have a problem of running very rich black smoke at high rps which is somewhat normal but blue smoke when warming up and my idle is very rough. if the...