Audi Q7 TDI CASA 2009 Throttle waveform needed

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Joined: Fri Jun 14, 2024 2:55 am

Audi Q7 TDI CASA 2009 Throttle waveform needed

Post by AActive »

Greetings to yall,

Looking for a good waveform for the throttle body for:

Make: Audi
Model: Q7
Year: 2009
Engine: CASA 3.0 TDI

001592 - Throttle Body Actuator Bank 1 (J338)
P0638 - 000 - Implausible Signal - Intermittent - MIL ON

Throttle body was replaced with new Pierburg part.
Still has same fault.

4pin Throttle body
Pin1 B+ br
Pin 2 B- rtwt
Pin 3 PWM from ECU bl
Pin 4 Feed back from Throttle body wt

Pin 4 is the one Im interested in.
I seem to be getting 12v at pin4 with throttle body commanded open or shut.
Im thinking the engine ecu is not getting position reference from the throttle body hence logging this fault.

If anyone has a good waveform with throttle commanded open and closed that would be much appreciated before I condemn the new throttle body.



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