Alright, well i finished up my header isntall a while ago, and havent fired it up yet. But i got to thinking, i had a buddy extend one side and i did the other, and this is the same buddy that crossthreaded 4 bolts in my head. So, naturally im beginning to doubt his abilities, if he crossed one of the wires, what kind of damage would that cuase, or just a faulty reading?