# Contrary 1992 Bonneville **URL:** \ **Category:** Maintenance/Repairs\ **Tags:** pontiac, bonneville\ **Created:** [February 6, 2010, 8:39pm UTC](https://community.cartalk.com/t/contrary-1992-bonneville/43980 "2010-02-06T20:39:43Z")\ **Posts on this page:** 5\ **Page:** 1
**Author:** ![schroeder](https://avatars.discourse-cdn.com/v4/letter/s/ec9cab/32.png) [@schroeder](https://community.cartalk.com/u/schroeder)\ **Post date:** [February 6, 2010, 8:39pm UTC](https://community.cartalk.com/t/contrary-1992-bonneville/43980/1 "2010-02-06T20:39:43Z")
The “check engine light” comes on during acceleration and goes off when cruising or deceleration. The car runs great…except, when it first reaches operating temperature and then I slow down close to idle the engine surges and may die. After that little episode it might still idle just a little rough but otherwise runs good. It seems to have good power and doesn’t bog down or miss when accelerating. I’ve checked & cleaned the PCV, replaced the vac hoses I could find, had the Catalytic Converter checked, fuel pump pressure’s okay, and I am running injector cleaner with the gas. I know it’s a little thing but it sure is driving me crazy! I will appreciate your help. Thanks for any suggestions you might offer. Mike ---
**Author:** ![Tester](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/tester/32/15976_2.png) [@Tester](https://community.cartalk.com/u/Tester)\ **Post date:** [February 6, 2010, 8:43pm UTC](https://community.cartalk.com/t/contrary-1992-bonneville/43980/2 "2010-02-06T20:43:23Z")
Have you checked for computer codes? Tester ---
**Author:** ![schroeder](https://avatars.discourse-cdn.com/v4/letter/s/ec9cab/32.png) [@schroeder](https://community.cartalk.com/u/schroeder)\ **Post date:** [February 6, 2010, 8:47pm UTC](https://community.cartalk.com/t/contrary-1992-bonneville/43980/3 "2010-02-06T20:47:58Z")
Great question. I did and forgot to mention it. Code 44 (lean?)Thanks. ---
**Author:** ![schroeder](https://avatars.discourse-cdn.com/v4/letter/s/ec9cab/32.png) [@schroeder](https://community.cartalk.com/u/schroeder)\ **Post date:** [March 9, 2010, 2:23am UTC](https://community.cartalk.com/t/contrary-1992-bonneville/43980/4 "2010-03-09T02:23:13Z")
Update: The problem turned out to be the cam sensor magnet. ---
**Author:** ![schroeder](https://avatars.discourse-cdn.com/v4/letter/s/ec9cab/32.png) [@schroeder](https://community.cartalk.com/u/schroeder)\ **Post date:** [April 6, 2010, 12:34am UTC](https://community.cartalk.com/t/contrary-1992-bonneville/43980/5 "2010-04-06T00:34:32Z")
I just want to update the last update. When I got the car back, I still had the surge problem even though the cam sensor and magnet were bad and were replaced. Someone mentioned that I should check the MAF. I took it apart and sprayed it with a MAF cleaner. Cleaning it actually improved the way the car ran. I also checked the resistance of the IAT sensor and it was “open”. Sorry for jumping on the “it’s fixed!” band wagon too soon.