Header Install...Backfiring..Misfiring...Help!!
I installed some LT's with an off road y-pipe and slp LM on my car today. I do have a custome tune on the car. Car idles perfect sounds really good....until it backfires!!! I take off and in grunt 1st the car hesitates. If I even try to get on it a little it really hesitates and bucks a little. While driving and idling it backfires like crazy. The car has not yet thrown a code and I've put about 20 miles on it. Any suggestions???
I installed some LT's with an off road y-pipe and slp LM on my car today. I do have a custome tune on the car. Car idles perfect sounds really good....until it backfires!!! I take off and in grunt 1st the car hesitates. If I even try to get on it a little it really hesitates and bucks a little. While driving and idling it backfires like crazy. The car has not yet thrown a code and I've put about 20 miles on it. Any suggestions???
I found a cracked spark plug on the passenger side...and I mean cracked. I replaced it and drove the car. Still the same thing but a little better. I was thinking it was the 02 sensors because I did the "pacesetter splice". Go figure.
Anyways I decided to go ahead and replace all the spark plugs and doing it the right way instead of half-assed. Sure enough I found another one on the driver side pretty much in the same condition. Fired the baby up and she purrs like a (well I would say kitten but with LT's, an off road y-pipe, and LM exhaust it's a little loader than that). I must say this thing sounds nasty and you can really here the cam now, but I may have to make it BorlaMouth. Thanks for all the help!


