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Old 10-07-2018, 03:31 AM
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andrewwynn andrewwynn is offline
Join Date: Jun 2015
Location: Racine, WI
Posts: 6,118
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I took a video last night when driving about 80-90 kph and gently accelerating then using a slight burst of acceleration to break the TC lock then holding the new throttle position to let the TC the lock and record on video the drop in RPM when that happens.

If something changed in the TC behavior that's of concern. Also there is a fairly good chance of the throttle position sensor soft-failing. It has two parallel potentiometers for redundance and that can cause some weird throttle behavior when one side fails but not total failure open or short. (Think noisy volume control on old am radio)

Look through your scanner live view options. I can watch all aspects of the transmission real time: input/output rpm, tc lock etc. Also the two throttle sensor values to confirm they are both operating properly. If yours can't do this, get a better scanner.

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E53 / M54 2001 3.0i gas LHD (pair of them: his & her)
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