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Old 09-22-2012, 05:57 PM   #9
vonbimmer
Registered User
 
Join Date: Jun 2012
Location: Reno
Posts: 21
My Ride: 01' E46 M3
I just had this issue on my M, I replaced the front sensor since its cheaper than an hour of diagnostic labor, but no luck. That said I took it to the dealer and with the über computer they have they could test both and the actuator at the same time. The result, diagnosis bad actuator. Saved me from taking it all apart for the Tps under the manifold or guessing about the pedal. Diagnostic cost $120, certainly worth it if you trust your dealer since it could be any of four parts. Just my experience and $0.02.
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