I'm trying to figure out some wiring and your 5000 manuals may help here. If you read some of my other posts, I am attempting to install a Board Computer in my 1988 4cyl 90, and Audi never put one in this car. I hope you can help out here, and I hope that the older models connections will point me in the right direction. The Board Computer from the B3's is similar if not identical to the ones used in the 5000's and I am looking for the pinout, specifically, the 4 pins on connector T4...pins 5, 7, 8, and 9. I have a diagram from the Bentley for the B3, but it shows no connection. I assume that + is battery voltage, - is ground, but where do S and SAS go? Pin 10 is supposed to be fuel consumption from the ECU. The rest of the pins go to the switch on the dash.
1988- board computer
I appreciate any help on this