This is pretty cool, DTC Search can assist you in interpreting Diagnostic Codes "thrown" by your Audi ECU. Also has a downloadable excel file with the list of the codes

http://www.s4biturbo.com/dtc_search.cgi

 

do you know where i canget info on doing circuit test on a throttle position sensor and what the voltage is supposed to be?

 

Yes, but not if you don't start your own thread.

 

nice find

 

Throttle valve control module power supply, checking







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Disconnect 8-pin harness connector from throttle valve control module -J338-.



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Connect multimeter US 1119 (Fluke 83 or equivalent) between harness connector terminals using adapter cables from VW 1594 connector test kit.



-
Switch ignition on, and check voltage. Specified values:





Connector terminals 3 and 7 (Ground): 9.0-14.5 volts





Connector terminals 4 and 7 (Ground): 4.0-6.0 volts



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Switch ignition off.
If voltage is NOT OK:



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Connect VAG 1598/22 test box Page 01-56 .







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Check wiring for open circuit between ECM/test box and 8-pin harness connector.





Connector terminal 3 to ECM/test box socket 69





Connector terminal 4 to ECM/test box socket 62





Connector terminal 7 to ECM/test box socket 67





Specified value: max. 1.5

[hr]

[align=right]24-102[/align][/align]









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Check wiring for short circuit between ECM/test box and 8-pin harness connector.









Connector terminal 7 to ECM/test box socket 69









Connector terminal 7 to ECM/test box socket 62









Connector terminal 4 to ECM/test box socket 67









Specified value:







-
Reconnect throttle valve control module harness connector.




If wiring is OK:







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Replace Motronic Engine Control Module (ECM) -J220- Page 01-57 .







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Carry out adaptation of throttle valve control module to ECM Page 24-119 . [/align]

 

where did you get that info? i cant see what is supposed to be in the boxes, looks like diagrams or pics. Thanks !!