LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

drove car after header install.....

Old Apr 11, 2004 | 11:12 PM
  #1  
david97gsxr's Avatar
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Joined: Nov 2003
Posts: 369
From: Martinsville, Indiana
drove car after header install.....

i couldn't get the stock o2s out of the manifolds, i'm going tommorrow to get some new ones.

but my question is, the car drove fine as long as i was on the gas. and if i let of the gas it would backfire.


i'm hoping it's just because i have no o2s and open headers.

i checked and double checked, all my wires are going to the right plugs. it's just when i let off the gas it backfires.

just wondering if that was normal
Old Apr 11, 2004 | 11:19 PM
  #2  
Brandon94Z28's Avatar
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Joined: Dec 1969
Posts: 757
From: Clio,Michigan,u.s
Backfiring on deceleration is normal with open headers.
Brandon
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