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#1451 12.12.2001 12:31
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OP Offline
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Yo, does anybody know where the diagnostic plug in on these Audi V8's for checking out the engine management? Mine's a '91 RHD V8 auto.

Ta

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addict
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Hello Richard!

You can find the pins for reading out the ECU under the right floor covering (passenger side). To use this interface you'll need a VAG 1552. The V8 has no onboard diagnostic with flashing LED like GM e.g.

For more information take a look at www.baumtools.com or http://www.opendiag.org/.

Maik

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Check out http://www.sjmautotechnik.com/ecufv8.html.
The page lists all fault codes and explain how you can check/clear them by using a LED and a jumper wire. The connectors are located behind the carpet in the passenger footwell.

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Hallo!
If you learn Swedisch you can build your own Interface with info from this site: http://home.swipnet.se/fredde-b/ Come on, its not so hard, kids speak it here.
Ok, here it is in English: http://www.planetfall.com/~jeff/obdii/
Then you only have to download the Sw demo from this site: http://www.ross-tech.com
And Voila! Your are your own diagnostic master!
Best of all it works! Its cheap ~20 EUR for the printed board and ~40EUR for the components. (the special connector for the car is a little bit on the expensive side but you can make it without it.)


Audi V8 4.2 (Panther Schwarz 92)
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Hi Stefan,

the Sites you recommend in this thread include many information about building
your own Interface but some information unfortunately is missing. As we all
know the V8 does not have a OBDII Connector for diagnostics. There are four
two-pin connectors in the passenger footwell, but how do I have to connect all
these pins to the SUB-D connector on the interface?

Do you know anything about this?



Life sucks and then you die.
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Hi!

You only need to connect to 2 of them, I think it is the 2 to the left.
Black and a white connector. Measure on them, one of the connectors is powersupply to the interface +12V and ground, I think the white is signal but I don´t remember.
If it dosen´t work just shift the signalcables, Don´t connect the powersupply in the wrong way!

The powersupply connector is keyed at the short side, the signal is keyed on the longside (cut corners).

Just to clearify: use 2connectors (4cables/connections)




Audi V8 4.2 (Panther Schwarz 92)

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