92 running rich
Thread Starter
Racer
Joined: Jul 2004
Posts: 279
Likes: 0
From: Jonesboro AR
92 running rich
ok- well i just got a cam and head job. Also got a custom chip burned. The exhuast has black smoke and a gas smell coming from it. i didnt have any problems b4 changing anything so i dont think its the sensors. however after idling for a few minutes the check engine light came on. I havent driven the car yet- is it possible that i need to just drive it 30 miles or so (because of the new chip) or should it be good to go?
Thread Starter
Racer
Joined: Jul 2004
Posts: 279
Likes: 0
From: Jonesboro AR
when we started it there was an exhaust leak b4 the cats. i read that this could cause it to run rich b/c the o2 sensor in the cat would get air and tell it to use more fuel. so this might have been the problem with the check engine light. i will find out tomorrow. sound possible?
Safety Car
Joined: Feb 1999
Posts: 3,504
Likes: 4
From: Mexico Beach FL
Originally Posted by bogus
I would be asking my chip burner.
Some chip burners don't make any changes at idle and part throttle, they just make changes for WOT -- with a performance cam and speed-density, this causes a rich condition at idle.
I had the same problem on my '92 with my first custom chip. I solved it by having Ed Wright do a chip for me.
Tom Piper
