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How common is this problem with the crankcase vent valve and pipe?I think that i have the same problem because i'm struggling with performence very often when the weather is hot out side i've had the cam and crankshaft sencors changed,new maf but no changes on the car...I have to rev it up to 2000rpm and give it all its got to perform otherwise its very very sluggish...is there anybody who can help?
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Performence Problem 
i've had the cam and crankshaft sencors changed,new maf but no changes on the car...I have to rev it up to 2000rpm and give it all its got to perform otherwise its very very sluggish...is there anybody who can help? 
UNITED WE STAND DIVIDED WE FALL 
2000 BMW 528i
Linear Mode
