Clearing P2098 and P2096 codes
Thread Starter
1st Gear
Joined: Apr 2022
Posts: 1
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From: Texas
Clearing P2098 and P2096 codes
Good Day,
I am hoping to gain some guidance/insight on how to keep my CEL from coming on. I have a '19 GS with full catless exhaust (both downpipes and x-pipe) and that is the cars only mods. I am also running O2 sims/dummy foulers which should prevent any codes/CEL. Now this hasn't been an issue up until recently when my check engine light came on and codes P2096 (Post Catalyst Fuel Trim System Too Lean Bank 1) and P2098 (Post Catalyst Fuel Trim System Too Lean Bank 1) came up on my scanner. The car has 13k miles and performs great. Not sure after a couple of years since the new exhaust work was done the codes are popping up. Does anyone have any insights on how to clear this codes or what should be done? Am I at the point that I should take it to a performance shop to have it properly tuned? I cleared the codes once, but the CEL came back on again the other day when I took it for a drive. Thanks for any advise.
I am hoping to gain some guidance/insight on how to keep my CEL from coming on. I have a '19 GS with full catless exhaust (both downpipes and x-pipe) and that is the cars only mods. I am also running O2 sims/dummy foulers which should prevent any codes/CEL. Now this hasn't been an issue up until recently when my check engine light came on and codes P2096 (Post Catalyst Fuel Trim System Too Lean Bank 1) and P2098 (Post Catalyst Fuel Trim System Too Lean Bank 1) came up on my scanner. The car has 13k miles and performs great. Not sure after a couple of years since the new exhaust work was done the codes are popping up. Does anyone have any insights on how to clear this codes or what should be done? Am I at the point that I should take it to a performance shop to have it properly tuned? I cleared the codes once, but the CEL came back on again the other day when I took it for a drive. Thanks for any advise.
Melting Slicks
Joined: Aug 2004
Posts: 2,339
Likes: 483
Good Day,
I am hoping to gain some guidance/insight on how to keep my CEL from coming on. I have a '19 GS with full catless exhaust (both downpipes and x-pipe) and that is the cars only mods. I am also running O2 sims/dummy foulers which should prevent any codes/CEL. Now this hasn't been an issue up until recently when my check engine light came on and codes P2096 (Post Catalyst Fuel Trim System Too Lean Bank 1) and P2098 (Post Catalyst Fuel Trim System Too Lean Bank 1) came up on my scanner. The car has 13k miles and performs great. Not sure after a couple of years since the new exhaust work was done the codes are popping up. Does anyone have any insights on how to clear this codes or what should be done? Am I at the point that I should take it to a performance shop to have it properly tuned? I cleared the codes once, but the CEL came back on again the other day when I took it for a drive. Thanks for any advise.
I am hoping to gain some guidance/insight on how to keep my CEL from coming on. I have a '19 GS with full catless exhaust (both downpipes and x-pipe) and that is the cars only mods. I am also running O2 sims/dummy foulers which should prevent any codes/CEL. Now this hasn't been an issue up until recently when my check engine light came on and codes P2096 (Post Catalyst Fuel Trim System Too Lean Bank 1) and P2098 (Post Catalyst Fuel Trim System Too Lean Bank 1) came up on my scanner. The car has 13k miles and performs great. Not sure after a couple of years since the new exhaust work was done the codes are popping up. Does anyone have any insights on how to clear this codes or what should be done? Am I at the point that I should take it to a performance shop to have it properly tuned? I cleared the codes once, but the CEL came back on again the other day when I took it for a drive. Thanks for any advise.
Team Owner
Joined: Jul 2004
Posts: 28,474
Likes: 3,291
From: Hartford WI
Good Day,
I am hoping to gain some guidance/insight on how to keep my CEL from coming on. I have a '19 GS with full catless exhaust (both downpipes and x-pipe) and that is the cars only mods. I am also running O2 sims/dummy foulers which should prevent any codes/CEL. Now this hasn't been an issue up until recently when my check engine light came on and codes P2096 (Post Catalyst Fuel Trim System Too Lean Bank 1) and P2098 (Post Catalyst Fuel Trim System Too Lean Bank 1) came up on my scanner. The car has 13k miles and performs great. Not sure after a couple of years since the new exhaust work was done the codes are popping up. Does anyone have any insights on how to clear this codes or what should be done? Am I at the point that I should take it to a performance shop to have it properly tuned? I cleared the codes once, but the CEL came back on again the other day when I took it for a drive. Thanks for any advise.
I am hoping to gain some guidance/insight on how to keep my CEL from coming on. I have a '19 GS with full catless exhaust (both downpipes and x-pipe) and that is the cars only mods. I am also running O2 sims/dummy foulers which should prevent any codes/CEL. Now this hasn't been an issue up until recently when my check engine light came on and codes P2096 (Post Catalyst Fuel Trim System Too Lean Bank 1) and P2098 (Post Catalyst Fuel Trim System Too Lean Bank 1) came up on my scanner. The car has 13k miles and performs great. Not sure after a couple of years since the new exhaust work was done the codes are popping up. Does anyone have any insights on how to clear this codes or what should be done? Am I at the point that I should take it to a performance shop to have it properly tuned? I cleared the codes once, but the CEL came back on again the other day when I took it for a drive. Thanks for any advise.
Had an issue with my MB once where the upstream O2 was bad. Fine. We changed it. Still bad. They swore the downstream one was not an issue. It must be the upstream. Changed downstream and life was good. I think your upstream might be doing something wrong in this case and since the O2 sims give it a flat voltage of maybe 0.45V. It thinks that the cat is doing too good of a job? Just a theory. Or was the car tuned for it all so that it expects certain numbers?
Moderator, Tech Contributor
Joined: Sep 2013
Posts: 15,621
Likes: 4,066
From: Cape Coral, Florida
Good Day,
I am hoping to gain some guidance/insight on how to keep my CEL from coming on. I have a '19 GS with full catless exhaust (both downpipes and x-pipe) and that is the cars only mods. I am also running O2 sims/dummy foulers which should prevent any codes/CEL. Now this hasn't been an issue up until recently when my check engine light came on and codes P2096 (Post Catalyst Fuel Trim System Too Lean Bank 1) and P2098 (Post Catalyst Fuel Trim System Too Lean Bank 1) came up on my scanner. The car has 13k miles and performs great. Not sure after a couple of years since the new exhaust work was done the codes are popping up. Does anyone have any insights on how to clear this codes or what should be done? Am I at the point that I should take it to a performance shop to have it properly tuned? I cleared the codes once, but the CEL came back on again the other day when I took it for a drive. Thanks for any advise.
I am hoping to gain some guidance/insight on how to keep my CEL from coming on. I have a '19 GS with full catless exhaust (both downpipes and x-pipe) and that is the cars only mods. I am also running O2 sims/dummy foulers which should prevent any codes/CEL. Now this hasn't been an issue up until recently when my check engine light came on and codes P2096 (Post Catalyst Fuel Trim System Too Lean Bank 1) and P2098 (Post Catalyst Fuel Trim System Too Lean Bank 1) came up on my scanner. The car has 13k miles and performs great. Not sure after a couple of years since the new exhaust work was done the codes are popping up. Does anyone have any insights on how to clear this codes or what should be done? Am I at the point that I should take it to a performance shop to have it properly tuned? I cleared the codes once, but the CEL came back on again the other day when I took it for a drive. Thanks for any advise.
