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Join Date: Apr 2001
Location: Richmond, VA, USA
Posts: 160
Garage
Post Backfiring on open throttle

Over the past few weeks, my car backfires every now and then when I open up the throttle wide. This happens maybe once a week, and only with the pedal to the floor.

I did a search of this BBS and found threads dealing with carbs (mine's FI) and threads dealing with backfiring on decel. I couldn't find anything about open throttle backfiring.

So I ask you, what might cause this?

Thanks in advance,
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Ray
76 911S Targa
Continental Orange
Old 03-29-2002, 06:20 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #1 (permalink)
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Join Date: Dec 1969
Location: Dade County, FL.
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two things to look for are a leaking cold start valve if the backfire is through the intake. and exhaust leaks if it is out the tailpipe. Also maybe the MPS could be doing it?
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93 Lightning
76 912e
Old 03-29-2002, 06:40 PM
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