lt1 backfiring
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Junior Member
Joined: Jan 2008
Posts: 21
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Car: 89 firebird formula
Engine: LT1
Transmission: T56
lt1 backfiring
Well I finally got it to run but but it is back firing and running like crap.I have all the vacuum lines hooked up except the fresh air for the optispark(waiting for the intake elbow from ebay).I also don't have either one of the o2 sensors in because there was no place for them in the headers so I am going to have them put into the exhaust(running dual from the headers).Would either of these cause the back fire?
Thread Starter
Junior Member
Joined: Jan 2008
Posts: 21
Likes: 0
Car: 89 firebird formula
Engine: LT1
Transmission: T56
Re: lt1 backfiring
never mind it was just a loose wire!I would like to thank every one who helped and for all the posts that people wrote.I would have never got this done with out them.When I started this swap I had a hard time changing spark plugs.
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