Well i got the trans problem fiured out but now i keep throwin o2 codes. Codes that wold throw very rarely before are now poppin up about every 5 miles. Nothin in my tune has chnged other than a few things transmission related so i don't know wtf?

It keeps giving me these two codes.

PO153-HO2S Slow Response Bank 2 Sensor 1 [old/immature]
P1133-HO2S Insufficent Switching Bank 1 Sensor 1 [SES][OLD][HISTORY][CURRENT][IMMATURE]

Ichecked the tune and like i said the only changes were trans related but now these two codes keep poppin up?

Here's the kicker too i replaced the o2's with front vette o2's from the same year model 2000 silvy 2000 vette.
Oh and this started happening right after i had the tranny replaced. Any chance something got messed up during the removal/instal?
But no luck i keep getting the same crap.
Ideas?

First tune is the new one 2nd is the old one if you wanna take a look at em.

 

Probable cause is exhaust leak. Since we had to remove the y-pipe to get the trans cleaned & in working condition (no thanks to the jokers that previously "fixed" it), you should get that sealed. Delete the codes after that, and see if the codes come back.

 

I can pull it off and reapply sealent but honestly it had a nice size leak beforehand and now if it's leaking at all it's not noticable.

 

I'm betting that a ground didn't get re-installed after the trans swap, I'd look around the back of the block and the top of the bellhousing for a dis-connected ground.

 

Def. goin to do this just won't be able to do so til later this week. Gotta be up and at work before 7 and will be there til dark tomorrow.

 

mentioned that to him over the phone. wasn't sure if that was the culprit, but certainly a possibility.

 

Check the o2 connectors water and a small amout of corrosion will have a huge effect on the readings.

 

Joe... any update?

 

check out his post about SD tuning