O2 Sensor/No Cats
The only other thing that I would think would throw a check engine light is that I have no cats. I have, what looks to be like, an O2 sensor going into the passenger side piping right before the muffler and after the headers. Is it going to trip anything if the exhaust isn't "clean" enough or since I have a sensor there will that be the only thing the computer cares about and won't throw a check engine light?


