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What could it be

Tiny
SAHERB
  • MEMBER
  • 1989 OLDSMOBILE CIERA
  • 4 CYL
  • FWD
  • AUTOMATIC
1989 cutluss ciera engine runs and idles fine when I eccelerate slow to get up to speed its ok but when I try to pull out fast it back fires through throtle body and bogs down
Thursday, February 17th, 2011 AT 11:55 PM

1 Reply

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Could be one of the following below -check and test:

Oxygen sensors.
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.
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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Thursday, February 17th, 2011 AT 11:59 PM

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