idle,acceleration, bogs and loses power to climb hills

1994 PONTIAC FIREBIRD
250,000 MILES • 4 CYL • FWD • AUTOMATIC
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ANNETTE TIGHE
  • MEMBER
  • 12 POSTS
I have a 1994 pontiac sunbird, 4 cylinder, 2 litre, I put a new computer and a new starter in it. It starts right up but it doesn't run right. The plugs are new, there are no service engine lights on but it loses power when climbing a hill. It hesitates, it just doesn't run right. It is not squealing so its not t he fuel pump. Any ideas? Anything you can tell me would be greatly appreciated. I am a separated lady on fixed income and can't afford much. Please help me. It runs rough, loses power, stalls acceleration is very slow up hill.
Thank You
Annette






Nov 30, 2010 at 2:36 AM
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RASMATAZ
  • CAR REPAIR CONTRIBUTOR
  • 75,992 POSTS
Could be caused by one of the following below

Oxygen sensor.
Catalytic converter.
Fuel injectors dirty/sticking.
Mass airflow sensor/Airflow meter.
Throttle position sensor.
Crankshaft position sensor
Knock 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 it
Nov 30, 2010 at 2:57 AM
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ANNETTE TIGHE
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  • 12 POSTS
thank You I will get all of this checked. Annette
Nov 30, 2010 at 3:12 AM
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