seems like cylinders shuting off gradually. on 1995 BMW 740iL

1995 BMW 740il 4.0, starts fine then immediately a few of the cylinders shut down. have checked the compression, changed coils, plugs, has fuel pressure. donot know whats wrong. car has 93k miles.plz help. thx.

by in Houston, TX on October 20, 2009
3 answers
ANSWER by on October 21, 2009
Are there and trouble codes stored in the engine module? Do you have any vacuum leaks? How is the fuel mixture?
ANSWER by on May 06, 2010
Possibly a cam sensor
ANSWER by on January 27, 2011
Check your Crank Position Sensor.