2001 BMW 318 misfires

2001 BMW 318
115,000 MILES • 4 CYL • 2WD • MANUAL
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KATE10123
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  • 1 POST
hi there,
my car keeps misfiring and i cant seem ti find the problem, i have tried changing the spark plugs and there is no change. could you please help me
Jun 9, 2010 at 1:31 PM
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RASMATAZ
  • CERTIFIED EXPERT
  • 75,992 POSTS
Inspect and test all the following listed below:

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.
Jun 9, 2010 at 1:41 PM
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DOCHAGERTY
  • CERTIFIED EXPERT
  • 9,603 POSTS
The coils are possibly in need of replacement, there is a recall from BMW on some of them.
Jun 9, 2010 at 4:24 PM
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