Balto82

Got this code after installing dorman defouler?

TommyP

iTrader: (2)

tried searching the site but there is literally nothing. Someone mentions it in a 5 year old post but no one knows what it is. I would undo whatever it was you did and see if it goes away.

Balto82

If I undo what I did then ill get a 420 code again lol. I read something on another forum about a bad o2 or wiring IDK.

TommyP

iTrader: (2)

I don't understand what you actually did, did you try to do a hardware or software bypass of the rear 02?

Balto82

Well I installed zzp 2.5 dp got the 420 code within 10 miles. Than I decided to do the defouler trick. Never got the 420 code again even after 100miles. But then I got P2Ao1 after 100 miles. Just put on vibrant defouler will see what happens. Ill get a new sensor go from there I guess. What happens if tune tune out the P2AO1? Will the rear o2 still work? Will I be able to get the monitor set ready for rear o2? Can't delete rear o2 cause of emission. So if I can't figure out the downpipe thing I'm pretty much done with this car. I don't feel like taking everything off every year its pointless!

cobaltss#01

iTrader: (4)

P2 it says generic(sae) but i can't find anything else yet.

Balto82

What does generic code mean? The only thing I have found was on a forum. Was talking about bad sensor or wiring. Was talking about testing the rear o2 for resistance for something like that, also leading down to a bad ECM