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Backfiring??

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DR. EVIL

THE DARKSIDE
Joined
May 27, 2001
Messages
241
I've had the car backfire a couple times lately!

you can see my sig for my mods.

I have the Trans+ set at
MAF- lean
WOT MAF - 2% lean
Timing - 19 advanced (retarded 4 from the chips 23)
WOT timing - no change

Seems to be happening after I gun it and have just let up on the throttle, BOOM!:eek: The car isn't doing a lean popping noise. The boost is only at 17psi.
The car is running very good though. It only seems to do it a couple times within 30 min of starting, then it doesn't do it anymore. And it's not everytime I gun it and let off.... not sure what to think....
 
Just throwing stuff out there. :)
Coil pack/module going south?
Loose grounds?
EGR valve sticking?

Paul
 
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