wil a bad regulator cause a rich condition? or anything related to the fuel system. I suspect a rich condition because my exhaust smells of fuel and the spark plugs are black at the top (carbon looks like)
@@PhillipsVision I can’t scan it because it’s an older car. It’s a 1994 Honda accord. I see what appears to be some oil mess on the oxygen sensor. But I’m not going to jump to conclusions. But could oil cause an o2 sensor to go kapoot?
Yes. Any issues with the fuel coming in and spark can cause that. If the fuel pressure is less that recommended for your vehicle it can cause a misfire
