Idle stabilization control unit pinout?

Mon Jan 26 03:08:53 EST 2004

Would anyone happen to have the pinout for the VDO-manufactured ISV 
control unit with VAG # 443 907 393 L? It was used in quite a few 5-cyl 
naturally aspirated models in the eighties. Mounts on three standard 
relay bases in the inside relay carrier.

My Cq started controlling its idle rather erratically (valve fully open 
most of the time). Since there's no on-board diagnostics in the car, I 
need to check all the sensors, switches *and* wiring manually, but this 
is a bit difficult without knowledge of the control unit pinout.

-- 
Antti Piirainen
87 Cq