on January 8, 2011, 9:00 am, in reply to "Re: VW Polo 2001 1.4 16v AUA Throttle pedal position implausible "
I seem to remember an Ibiza a few years back that I looked at, wouldn't rev and logged codes for TPPS. When scoped the ref voltage was shorting out. I had to disconnect each sensor that used the shared ref until the short went away to find the fault. In my case it was the cam sensor. There was no fault code for the CMP.
Message Thread 
VW Polo 1.416v AUA 2001 - Throttle pedal position implausible, code P1639 # - Simon Clarke January 7, 2011, 9:47 am
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