hey everyone i have a 1989 camaro with a lo5 in just finished the swap. i have headers and 3 in exhaust from y pipe back weiand intake and a chip from tbi chips. my car runs like crap stumbles hesitates and backfires through exhaust. when im going down the highway check engine light comes on code 32 egr. the chip is soposed to have all emmision taken off. but its weird once the code set and light is on it doesnt backfire doesnt stumble or hesitate. runs pretty good not perfect but alot better than before the check engine light comes on. any help would be greatly appreciated

 

Was the injectors upgraded during the swap? If it still has the 305 one then its running lean.

 

thanks for the reply i figured it out the distributor went bad during the swap