Mechanics

POOR IDLE, MISFIRE CODES DETECTED, CAN HEAR L

1997 BMW 540i

Engine Performance problem
1997 BMW 540i V8 Two Wheel Drive Automatic 151000 miles

I have this car that has misfire detection in cyl. 8 and I've changed the spark plugs, moved coils around, changed fuel and air filters, moved plugs around, cleaned electronic idler valve. Still getting misfire detection in cyl. 8 after resetting the codes with a OBD reader. Kind of lost here. Any ideas?
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Jmalander
July 5, 2010.



The PCV plate or intake manifold gasket may be compromised.

Dr. Hagerty
Jul 6, 2010.


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