Car chugs, backfires and dies after 15-20min of driving. I can leave my house and it will die in the exact same place everytime, about 15min of driving. It will fire back up but misses and chugs. Problem disappears when engine is cool. Changed the MAF, module, crank sensor, coil pack tests ok according to the meter. No codes on the scanmaster, getting fp at the rail, unplugging the cam sensor doesnt help. When it starts acting up AF stays at 6 and wont move just get backfires. Any help or ideas appreciated, tired of throwing parts at it.
thanks
thanks