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1998 Chevy Camaro Misfire and dies at open throttle

Tiny
LANDOGZ
  • MEMBER
  • 1998 CHEVROLET CAMARO
  • V8
  • 2WD
  • AUTOMATIC
  • 16,000 MILES
My 98 camaro backfires always and sometimes dies and drains the battery at wide open throttle. Ive replaced the map sensor cuz it wsnt getting the proper voltage, problem started after changing 02 sensor. Please help
Saturday, July 4th, 2009 AT 6:07 PM

1 Reply

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
The O2 sensor might not be switching accordingly other possible causes below

Misfiring can be caused by worn or fouled spark plugs, a weak spark (weak coil, bad spark plug wire), loss of compression, vacuum leaks, anything that causes an unusually lean fuel mixture (lean misfire), an EGR valve that is stuck open, dirty fuel injectors, low fuel pressure, or even bad fuel.
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Saturday, July 4th, 2009 AT 6:53 PM

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