Originally Posted by amg-jerry
I agree with Woody....swap your O2 sensors and see if the problem swaps sides.
Did you notice a pending code for Bank 1 or was it Bank 2 only? If there is no code for Bank 1, then I'm going to guess it's a faulty O2 sensor or faulty cat. It could even be an exhaust leak.
I think that the O2's will need to see 20+ AFR to pop the P2098 code.
I also don't think that anyone else (including 240m3srt) has had this code.
Jerry, I also had this code before I sent the ecu back to you for the re-tune, so it's not from the current tune. The gas cap may not be tight enough which could be the main cause. The car only has 9700 miles on her. Not sure where the air/fuel is sitting right now, but I'll know when I see you in Florida next month!
