Just finished installing Pacesetter LTs and TSP catted Y. Went pretty well but car seems to be running rough. No apparent miss, no time tonight for trouble shooting. Anybody want to offer a place to start the search? Is there a wire that is commonly knocked off or something like that. Did recheck the plugs and wire connections and they seemed fine. Rear O2s are gone but understand that won't affect motor. Any help would be great.

 

ur front o2s could be shot, recheck the plugs, i could be running too rich too

 

Make sure one of the plugs isn't cracked.

I've done that before on my old 96 Camaro, it ran like crap but didn't throw a SES light so I finally figured out it was a cracked plug.

 

Double check the plug wires are on tight. Believe it or not it took us a week to figure it out. #8 is a bitch!

 

 

+1 ....even a hairline crack can cause problems....other than that, make "sure-sure" all of your plug wires are on properly, you should hear/feel 2 clicks when popping them on.

 

Like everyone else said....check all of your plugs for even a tiny crack, this is a very very common problem when people install LT's. If they are all fine then you probably have a problem with your front O2's.

 

another guess maybe you bumped your coolant temp sensor when you were gettin the headers up. Just a thought

 

Good idea

 

Thanks for the info, I'll start checking tonight. If anyone else has an "i found" please add on. Thanks again this forum is great.