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      11-28-2011, 08:39 PM   #8
Dr Zoidberg
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Drives: 08' 328i
Join Date: Mar 2011
Location: Gainesville, Va

Posts: 26
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I apologize for any confusion ,

My last bmw engine I built was a m20 for my scca car. So this new tech is getting me loopy ,

I was merely parroting the dealer. As the SA was incorrect,

They said it was the VANOS eccentric shaft sensor,

In actuallity it was all part of the valvetronic system


So recap from a post back

A couple concerns

I dont understand how this sensor failure could cause the valvetronic motor to squeal /screech like that, but I do understand now why it was not happening under throttle.

I also dont understand that if the motor was screeching that bad , how nothing in the motor was not damaged. As I am guessing the eccentric shaft sensor was telling the motor to go beyond its limits?? no idea ?

Any help with this would be great.
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