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1991 Ford Mustang misfires

Tiny
CUBIASISMAEL
  • MEMBER
  • 1991 FORD MUSTANG
  • V8
  • 2WD
  • MANUAL
  • 76,000 MILES
Hi am having a wierd problem my car it missfires and chocks when I put the pedel to the metal and as soon as I release the pedal it kind of comes back to life. It will not do it when I press slowly on the gas.
it only missfires when I press on the gas fast. Or all the way down.
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Tuesday, May 18th, 2010 AT 12:31 AM

1 Reply

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Inspect and test all the following listed below and get back with some results

Oxygen sensor.
Catalytic converter.
Fuel injectors dirty/sticking.
Mass airflow sensor/Airflow meter.
Throttle position sensor.
Manifold absolute pressure sensor.
EGR Valve
Fuel pressure regulator leaking or defective fuel pump.
False air leakage.
Fuel contamination.
Foul/defective spark plugs.
Open spark plug wires.
Ignition coil/Coil packs defective.
Incorrect ignition timing.
Cap and rotor.

Note:If it doesn't apply disregard.
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Friday, May 21st, 2010 AT 9:44 PM

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