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Car popping on deceleration

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Old 04-20-04, 05:37 PM
  #26  
DETH TRP

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I've never heard a 3" exhaust (without a cat) that doesn't do it occasionally
Old 04-20-04, 05:41 PM
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According to Steve Kan, there's no way to avoid it with the PFC. There are not many people with more experience tuning FD PFC setups than him, so you'll probably have to live with it. I've gotten used to it. If you lift your foot off quickly it will help prevent it. Cruising with you foot barely on the pedal will cause more popping. If you figure out a solution, please share it.
Old 05-27-04, 07:37 PM
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so supposing ur running a little rich....with stock cats, will you still get backfiring?
Old 05-27-04, 08:51 PM
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You'll still get it, but with both stock cats the backfiring will be very muffled and won't alarm you or others around your car.
Old 05-27-04, 08:52 PM
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stupid repost.

Last edited by roadsterdoc; 05-27-04 at 09:04 PM.
Old 05-27-04, 09:41 PM
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how do you keep it from running rich
i have stock everything but a catback exhaust...newly reman engine....newer ecu....everything....
Old 05-27-04, 10:06 PM
  #32  
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better rich than lean
Old 05-27-04, 10:36 PM
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Originally posted by esebueno
how do you keep it from running rich
i have stock everything but a catback exhaust...newly reman engine....newer ecu....everything....
Old 05-28-04, 02:30 AM
  #34  
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its rich
Old 05-28-04, 10:30 AM
  #35  
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Originally posted by BLKTOPTRVL
I've always noticed this when something in the exhaust system is loose or has a hole. I think it may be related to fresh air entering the system. If you have an increase in exhaust smells, you might want to check the exhaust.
If it recently started then definately check for exhaust leaks. I just tore my entire exhaust up and re-installed now I have absolutely no popping except if I hit fuel cut (then I shoot a flame when it pops). My exhaust consists of down pipe, high flow cat, and RB dual tip and I have a PFC.
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