E46Fanatics - View Single Post - Still Suffering from hesitation/bucking even after VANOS seals? Look Inside!
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Old 07-20-2011, 10:15 PM   #19
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Join Date: May 2008
Location: Northwest
Posts: 405
My Ride: 328i
I was skeptical too, but it does work and brings back the engine to its original state.

I believe that the issue is this..........

The contact width are set to the high side of the spec. The signal that is traveling across these contacts is quite weak. In other words, the current draw is very small. The device of interest, is not receiving the full signal strength from the PCM. Hence the sluggish performance of the VANOS. The best analogy that I can think of: Measuring the resistance of a conductor with a DMM. You will obtain one value when gently touching the conductor with the leads and a different reading when you press hard.

GREAT JOB OP on the find
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