Ok as alot of people here know I have had problems with my service engine light coming on from taking off the cats. yes I have the )2 Sims but the damn thing never work. Well I had a few to many drinks saturday and got bored about 1:30 AM and climbed under my truck and took the damn thing out and hooked up my originals. Well guess what?? the next morning i go to start it and the damn light is out and now it hasn't come back on. Don't know what the deal is but finally the damn annoying light is gone. anyone else have this problem??

 

I assume you are talking about the rear O2's since you mentioned the cats, so why dont you have Nelson turn them off???
Oh, nevermind, sorry I just saw that the new tune isnt in yet.
I had some problems with 02's as well. I just went straight for the tune. All the O2 sims I saw were pretty expensive.
At least you seem to have beatin it for the time being.

 

LOL!

 

Yea I already told Nelson send me my updated tune, an to turn off my 02s cause I am about to dual my truck out with the same setup as you cstchevy , Im sure it will sound good I just hope it still runs good. I wil let you guys know the out come.

 

I get off work and the SOB come back on. their F*ckin killin me, Nelson will be getting a call in the next month or two for a tune.

 

just take the bulb out until u get a tune...my grandprixs abs light stayed on and didnt have a thing wrong with it. so i jerked he damn bulb out ...no more abs light

 

Did you disconnect the battery when you swapped the O2's back in? If you did, that's why it took so long for the light to come back on. The pcm has to complete the drive cycle before it decides if the O2 is working properly or not, and the rear O2 sensor drive cycle is one of the longest ones to complete.