Ok thanks, I haven't called the dealer yet, I am kind of worried of the situation, there is no proof that it was or wasn't on before. I was going to switch the 2 o2 sensors from bank 1 and 2 to see if maybe the code would follow the sensor, but from your article it sounds like the o2 sensor is fine. I may call them tomorrow and see what they have to say, I mean this thing was running fine until the PCM issue. I imagine there scan tool should be able to check for injector flaws. The plugs, PCM and timing should be ok. that just leaves the converter or an intake leak (which would fall back on them). I'll keep the forum posted. thanks again