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my car is backfiring

Old 04-27-2009, 07:41 PM
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Default my car is backfiring

just put LT headers about 3 weeks ago and its been backfiring. it does it when i shift gears and when i press on the clutch need help whats is it
Old 04-27-2009, 08:02 PM
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Guess #1:
Plug wire not seated completely, or damaged during removal/installation.

Guess #2:
Burned O2 sensor wire.

Let us know what you find.
Old 04-27-2009, 10:54 PM
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^^^^yea i have the same problem and just orderd the ngk and msd wires and plugs combo from the ws6 store if that doesnt work its the o2's, but im didnt take out all of my plugs and im sure i hit one/some
Old 04-27-2009, 11:55 PM
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are you sure its backfiring or just popping?

ypipes are know to pop, especially on decel from a high rpm.


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