1998 Pontiac Firebird No power

Tiny
ONETIMEJRR
  • MEMBER
  • 1998 PONTIAC FIREBIRD
1998 Pontiac Firebird 6 cyl Manual

Can't get above 20-25 mph. Have replaced spark plugs. No idea what to check next.
Sunday, July 18th, 2010 AT 6:24 PM

1 Reply

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Possibilities: Inspect and test all the following listed 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.
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Sunday, July 18th, 2010 AT 6:42 PM

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