O2 code from nowhere, AFR's screwing up.
 

89 CRX SI, dsm 450's, Turboedit, Ostrich, Innovate WBO2

Well, the car has been running strange lately. Yesterday, it was idleing around 13.5:1 so I brought it up to 14.5:1 and it ran fine, we shut the car off for about half an hour to have some taco bell, when we came back out and started it it's idle was at 17:1 (even after warmup), brought it back home and called it a night. Today when we go out and start the car it is sitting at around 13:1 until it warmed up and jumped up to almost 20:1 under idle, brought it back down to 14.3ish:1 and the car has ran fine for the rest of the day, until we were just driving under regular conditions, no boost at all and an O2 code pops up after about 15-20 min. Brought the car home, pulled the hazard fuse, turned it back over and the code was off. Anyone have any idea what the hell is going on? Could the bad (maybe) stock O2 be ------- up the idle or is there a problem with the ecu/ostrich/turboedit?

Also, I had a street tune on this car at about 13.5-14.0 in vac, and 11.5 in boost until I could get on the dyno. After this started happening the car is running between 11.0-15.0 under vac and still fine under boost. Any idea how my AFR's could have gotten fucked up while the car sat in the garage without being touched for a week? This just doesn't make any sense to me.

Re: O2 code from nowhere, AFR's screwing up.
 

Mine was tossing the o2 sensor code also. I put in a new o2 sensor, same ----. I gave up and disabled it in TE and the car runs 15x better.

Re: O2 code from nowhere, AFR's screwing up.
 

Were you getting totally different AFR's every time you drove the car without changing any maps?

Re: O2 code from nowhere, AFR's screwing up.
 

No, only when the car went into open loop. Normally if I wasn't throwing a code it was always the same, but as soon as the o2 went, It would change because naturally it swicthes to open loop.

So to the part of the problem, I can't explain.

Re: O2 code from nowhere, AFR's screwing up.
 

Could have been a bad burn or a bad chip... :P

My car's funny like that sometimes with UberData. I just ignore it because I know my idle's right where I want it.

Re: O2 code from nowhere, AFR's screwing up.
 

no chip. Car is running off of the Ostrich.