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  1. S

    Replaced engine, misfire still

    Hey thanks for the reply, I did actually unplug #6 injector, idle changes but it isn't repeatable, it seems like the entire time no matter what injector you unplug it idles rough, then it sounds okay and then keeps switching back and forth. As to your other question, I just put the old intake...
  2. S

    Replaced engine, misfire still

    Where to start, I had an 08 4x4 Tahoe come in the shop, check engine, p0300 random misfire with cylinder 6 reading prominent with the tech 2, operator ran it past scheduled mx intervals and no oil was on the dipstick, This is a cop truck and lets just say air force cops aren't the best at...

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