Question for you, when you do shut off the 02s, well I had the "check engine" coused by x-pipe shut off, which means shutting off your 02s, will the "check engine" light come back on when your o2s fouklf out? I hope you understand what I'm asking here. Recently my car started running funny and I believe it's the 02 sensor but they were shut off when I had the car dyno tuned.
