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Re: Truck misfiring after sitting for a couple weeks
We thought it was a tuning issue at first. I just had a simple reflash done by Brendan from LT1swap..didnt do any special tuning since the engine is all stock...its been doing it ever since we finished the swap. My buddy had it at his shop numerous times trying to figure it out...drove around with a scanner monitoring everything and the only thing he could see is that the o2 sensors are not working but cant figure out why. I replaced them both and still nothing. I also replaced the maf sensor, iacv, fpr, and cleaned the throttle body. Has new plugs and wires, the coils are fine and he said he checked for vacuum leaks and there isn't any. Only thing I didn't change is the tps and I'm going to do that next.
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