Everytime i do a major ripper, like 3rd gear at 18psi all the way to redline, when i let off it idles at 2000rpm. Every now and then it throws a check engine light for O2 heater circuit. Its really annoying, as the idle doesnt go away for a pretty long time. Is the o2 sensor at fault? is it getting too hot?

 

That's bananas. Never heard of that. I would suggest trying another o2 sensor just to rule that out.

 

yea im ordering my wideband today so we'll see. I never seen anything like that either. But its not even like sometimes it does it and sometimes it doesnt, its all the ------ time. Kinda embarrassing after i race someone down in philly to come back down the road with my car idleing at 2k.