Mechanics

MISFIRES

2001 BMW 318

Engine Performance problem
2001 BMW 318 4 cyl Two Wheel Drive Manual 115000 miles

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
Avatar
Kate10123
June 9, 2010.



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.

Rasmataz
Jun 9, 2010.
The coils are possibly in need of replacement, there is a recall from BMW on some of them.

Dr. Hagerty
Jun 9, 2010.