New Headers Backfire at Idle Help
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Race Director
Joined: Apr 2005
Posts: 10,179
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From: Wesley Chapel, FL Las Vegas, NV
New Headers Backfire at Idle Help
Just Installed LG Streets and Off Road X on 2002 ZO6
I've installed about 6 sets of these with and without cats and never had this issue before.
Backfires at Idle and Low speeds.
Facts:
#1 Moved the rear O2s to the front
#2 The O2 sensors are NOT crossed
#3 Rear O2s Tuned out with HP Tuner
#4 Installed new plug wires.
Not Throwing any Codes
I pulled the plugs in extra bungs on the X-pipe. Pass side is nice and brown but the Driver side is black and sooty.
I did reuse the OEM Headers gaskets so at this point I can only think the is an exhaust leak that is causing the backfire.
The Chevy Dealer in town have only 1 lousy gasket between them
What do you guy think?
Thanks
I've installed about 6 sets of these with and without cats and never had this issue before.
Backfires at Idle and Low speeds.
Facts:
#1 Moved the rear O2s to the front
#2 The O2 sensors are NOT crossed
#3 Rear O2s Tuned out with HP Tuner
#4 Installed new plug wires.
Not Throwing any Codes
I pulled the plugs in extra bungs on the X-pipe. Pass side is nice and brown but the Driver side is black and sooty.
I did reuse the OEM Headers gaskets so at this point I can only think the is an exhaust leak that is causing the backfire.
The Chevy Dealer in town have only 1 lousy gasket between them
What do you guy think?
Thanks
Last edited by Vega$Vette; Aug 17, 2009 at 11:12 PM.
