P2096 p2196

[soltez]

Hey guys I've been trying to fix these codes for to long now and was looking for some input before I give it to a shop to diagnose.

P2196 - 02 sensor signal biased / Stuck Rich b1s1

P2096 - Post catalyst fuel trim system too lean bank 1

I've done plugs coils and replaced the b1s1 02 also thinking about replacing the b1s2. Not sure if I should try that or just let a shop look into it.

Note:I don't think it should matter but I'm catless. I'm assuming the car runs super rich while the CEL is on because the fumes are much stronger and the oil smells like gas after only 2500-3000KM.

[mnthny4]

ARE u running rear o2s sensor spacers

[soltez]

Nope Uni Stg2 so dont need them.

[Lensch09]

Can you try cleaning your MAF? In past cars (B7A4, B5S4, B5A4) I've picked up this code every once and awhile with a dirty MAF.

Could also be a fuel injector, but that's a bit more difficult to diagnose. Have you pulled timing or knock for individual cylinders on that bank?

-DL

[jordan7982]

Hey guys I've been trying to fix these codes for to long now and was looking for some input before I give it to a shop to diagnose.

P2196 - 02 sensor signal biased / Stuck Rich b1s1

P2096 - Post catalyst fuel trim system too lean bank 1

I've done plugs coils and replaced the b1s1 02 also thinking about replacing the b1s2. Not sure if I should try that or just let a shop look into it.

Note:I don't think it should matter but I'm catless. I'm assuming the car runs super rich while the CEL is on because the fumes are much stronger and the oil smells like gas after only 2500-3000KM.

Ever solve this issue? Have same issue but with rear O2 spacers, but I don't think it makes much difference.