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1994 Chevy Camaro Backfire

Tiny
SKULLIFIED
  • MEMBER
  • 1994 CHEVROLET CAMARO
  • V8
  • 2WD
  • MANUAL
  • 68,000 MILES
94 camaro z28 lt1 6 speed backfiring at 2300-2500 RPMs when I punch it replaced the wires when I first got it and that fixed the hesitation but again it still backfired so I changed the fuel filter and it runs a lot better but it still backfires but only between those RPM's. The plugs are new NGK's. I have a dual borla exhaust with a y-pipe. Can't get it to stop backfiring now when I drive it normally it won't backfire it runs great and when I punch it and it backfires there is no loss of power at all. Cats have been removed/ My thoughts were possible bad timing on the car exhaust leak.
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Wednesday, March 4th, 2009 AT 6:44 PM

4 Replies

Tiny
MUSTANG87
  • MECHANIC
  • 261 POSTS
Have scanned the computer?Possible also your distributer is goin bad, its behind near the water pump. They r very expensive so if u wanna try that just go to a self serve junkyard and get one off another camaro or a caprice or a roadmaster all have the 5.7 give that a try u never know.
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Wednesday, March 4th, 2009 AT 9:26 PM
Tiny
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  • 8 POSTS
The gap on my spark plugs is off they are at.036 and they need to be at.044 I'm going to do that and see if that works otherwise im going to do exactly that our borrow someone's distributor I know out of a firebird and see if that works if so time to work more to buy the distributor I guess lol
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Thursday, March 5th, 2009 AT 9:02 PM
Tiny
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  • 8 POSTS
And im having trouble finding a place that can scan obdI chevy's closest ive gotten was an obdI scanner for fords lol
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Thursday, March 5th, 2009 AT 9:04 PM
Tiny
MUSTANG87
  • MECHANIC
  • 261 POSTS
Maybe your gonna have to take it to a shop to get it scanned I know they charge to much but sometimes we gotta pay loli hope you find the problem im sure its in the spark area. Good luck and dont get stressed it should be a joy working on american muscle.
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Thursday, March 5th, 2009 AT 10:22 PM

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