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engine cut out at 3800 rpm

918 views 2 replies 3 participants last post by  mtccl 
#1 ·
I have a 89 325i vert, everything is good until I reach about 3800 rpm's then the engine has a power loss. I have checked the fuel pressure regulator, the full throttle switch and the mass air flow sensor, no luck so far, any ideas on what I should do next
 
#2 ·
Could be :

coil

camshaft sensor

crankshaft sensor

Im not sure what of the above sensors you have but one controls the injectors and the other the spark.
 
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