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What could be causing my backfiring?

Tiny
CSTAFF25
  • MEMBER
  • 1997 EAGLE TALON
  • 118,000 MILES
It is the turbo version of the car.
It only backfires at full throttle around 4000 rpm.
I know I have a bad oxygen sensor on the manifold.
I have heard I should check spark plugs and boost leak and timing. I was just wondering if this info is enough to narrow down cause.
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Tuesday, July 10th, 2012 AT 1:15 PM

1 Reply

Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
Backfiring can be caused by a bunch of things. Scan for codes first and check fuel pressure. Then if these are original spark plugs replace those and check plug wires for resistance.
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Tuesday, July 10th, 2012 AT 1:47 PM

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