Ur s6 wiring question

[gavs20v]

Ive got an s6 aan and loom in my cabriolet. Out of no where my oil warning light has decided to come on when the engines running. Its on permanently no matter what rpm. Ive changed both senders and no changed. Ive also swapped the autocheck unit. At cold im getting 5 bar and on idle when warm 2- 2.5 bar.
Couple of questions-
Whats colour is the oil pressure sender supped to be? Ive been told by one source black and another it could be black or blue.

Other than the oil pressure sender and the sender for the gauge, is there anything else that contributes to the oil warning light on the autocheck system?

Thanks
Gav

[UrS4boy]

Try looking at the list in this post, specifically, number 17. There is a difference between UrS4 and UrS6 senders:

http://forums.audiworld.com/showthread.php?p=18950247