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Old 08-28-2023, 10:58 AM   #8
ctrlz


 
Drives: 2017 2SS, 50th pkg, M6, MRC, NPP
Join Date: Jan 2016
Location: Ocean City, NJ
Posts: 3,584
Quote:
Originally Posted by NiteBlitz View Post
P2096 and P2098
Post Catalyst Fuel Trim System Too Lean Bank 1 and Bank 2.

PS the car does not have any cats.
Post cat sensor is seeing more oxygen than expected. ECM is reading that as "lean." What has actually happened is cat converters have been removed, and now oxygen that would've been used by the converter is still in the exhaust stream.

If it worked before you can try replacing the sensors. I would probably try one of the cheater harnesses that can be plugged in place of the O2 sensor and always give an in-range reading.
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