2002 BMW 530i Engine misfirre

2002 BMW 530I
146,000 MILES • 6 CYL • 2WD • AUTOMATIC
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BILL HERNANDEZ
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Engine misfire at low RPM. Changed spark pugs and still missing. OBD II codes show all 6 ciylinders missfiring, plus PO0300 code. Seems to accelerate just fine.
Mar 5, 2010 at 2:33 PM
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RASMATAZ
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Engine running rough or misfiring can be cause by the following:
1.Defective spark plug.
2.Inadequate spark/coil,defective spark plug wire.
3.Lack of compression
4.False air leakage.
5.Faulty fuel injectors.
6.Insufficient fuel pressure.
7.Contaminated fuel.
8.EGR valve that is leaking.
9.Oxygen sensors.
Mar 5, 2010 at 3:22 PM