The O2 sensors probably do not need to be replaced. If you don't have a CAT, the rear O2 sensor just needs to be backed out of the airstream. There's threads on here that show how to do it using an anti-fouler.

 

sorry to hear. hope you get it figured out soon.

 

im having the same issue with the oil light at low idle. (750rpms). But i have no SEL. Should i assume i have to do the same?

 

no dont assume anything. the dealership probably isn't exact right about the problem and they are on the basis of replace before testing solutions... there are two sensors on the car for it. one is on the block under the intake manifold. witch is the one for the light... and the other is on the tranny side of the head for the mivec control.. if the one on the head is bad it will idle funky like that. the one on the back of the block is only for the light and makes no difference if its there or not...,. i dont have mine in cause i have a oil pressure sender there.

 

bump..

 

I had a rough idle and the oil light would kick on after the engine warmed up.

I replaced the oil pressure switch, and it has been at fine ever since (last summer).

 

So anymore info on this I have had my gt tb installed for awhile now and have had no problems ,just curious. Thanks