2000 jimmy, 4.3l,, then misfires, someone stole the cat and they straight piped it, could that be the cause it shows the p0300 code, I put new wires,plugs,cap and rotor, runs fine until it warms up then hesitates and misfires, the cat was stolen and the previous owner straight piped it, could this be the cause of it running rough, also showed p0132 code, 02 sensor circuit high volts [ bank 1 sensor 1], what does that mean, is it related to the cat?
Jan 12, 2012 at 10:02 PM
