# Jeep Engine Code Help, Please **URL:** \ **Category:** Maintenance/Repairs\ **Created:** [July 31, 2007, 5:10pm UTC](https://community.cartalk.com/t/jeep-engine-code-help-please/2455 "2007-07-31T17:10:25Z")\ **Posts on this page:** 5\ **Page:** 1
**Author:** ![Glory\_Boy](https://avatars.discourse-cdn.com/v4/letter/g/e5b9ba/32.png) [@Glory\_Boy](https://community.cartalk.com/u/Glory_Boy)\ **Post date:** [July 31, 2007, 5:10pm UTC](https://community.cartalk.com/t/jeep-engine-code-help-please/2455/1 "2007-07-31T17:10:25Z")
The check engine light on my '05 Wrangler is on (but not flashing). The parts store computer read two errors with a code of p2096. The guy said he doesn’t know the specifics and that I need to go to a dealership. Can anyone tell me what the code stands for and what I could do do narrow down the problem without paying through the nose at the dealership? ---
**Author:** ![Glory\_Boy](https://avatars.discourse-cdn.com/v4/letter/g/e5b9ba/32.png) [@Glory\_Boy](https://community.cartalk.com/u/Glory_Boy)\ **Post date:** [July 31, 2007, 6:45pm UTC](https://community.cartalk.com/t/jeep-engine-code-help-please/2455/2 "2007-07-31T18:45:02Z")
I’ve done more research and think that it means “Post Fuel Trim Too Lean”. I understand that it could be the O2 sensor, vacuum leak, pcv or the exhaust manifold. The O2 sensor is common issue and seems simple enough to tackle myself, but I don’t know about the others. I don’t really know how to narrow it down more. Any ideas? Sounds like it might end up being costly. ---
**Author:** ![Cougar](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/cougar/32/21348_2.png) [@Cougar](https://community.cartalk.com/u/Cougar)\ **Post date:** [July 31, 2007, 9:15pm UTC](https://community.cartalk.com/t/jeep-engine-code-help-please/2455/3 "2007-07-31T21:15:02Z")
Check for a air intake leak after the MAF sensor in the intake ducting. You could try spraying some WD-40 on suspected areas while the engine is running. If the engine changes speed you found the leak area. ---
**Author:** ![Cougar](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/cougar/32/21348_2.png) [@Cougar](https://community.cartalk.com/u/Cougar)\ **Post date:** [July 31, 2007, 9:17pm UTC](https://community.cartalk.com/t/jeep-engine-code-help-please/2455/4 "2007-07-31T21:17:35Z")
This problem should be covered under warranty if the mileage is low enough. ---
**Author:** ![hellokit](https://avatars.discourse-cdn.com/v4/letter/h/6a8cbe/32.png) [@hellokit](https://community.cartalk.com/u/hellokit)\ **Post date:** [July 31, 2007, 11:06pm UTC](https://community.cartalk.com/t/jeep-engine-code-help-please/2455/5 "2007-07-31T23:06:57Z")
not that it really helps; but, the full title of DTC P2096 is, “Post Catalyst Fuel Trim System Too Lean Bank 1”. Your engine is a V6 or a V8. The Bank 1 would be the left side of the engine. The lean part would be excess air, like from a leak on the intake manifold or the exhaust manifold, OR the O2 sensor saying it is. The sensor could be mistaken, or, there could exist a leak.