diagnostic port

[vaughan84]

hey folks! got a problem with my 1990 20v quattro coupe, theres a sensor packed up. got hold of a diagnostic unit but cannot find the port on the car! anyone any the wiser? cheers!

[scotty33]

There are 2 or possibly 3 plugs (depending on build date) each plug has 2 pins. If you have an OBD2 connector on your scan tool, you will need a converter lead to connect to the OBD1 type connectors on the car, btw these cars can 'blink' out their fault codes on a LED/low wattage bulb. (if you use a 12v low wattage bulb or 12v led, no resistor is needed).

more info here

http://20v.org/tools.htm#VAG1115
Tools and Parts

http://20v.org/fault.htm

The plugs are similar to and in much the same place as this Audi100

link:http://www.sjmautotechnik.com/trouble_shooting/100ecuf.html#fault
Audi Technical Information Parts Specialist SJM Autotechnik 503-244-2834 Service Repair
Diagnostic Fault Codes

[vaughan84]

cheers man! i will give that a go!