Oil Pressure Warning on Auto Check System '91 200 TQ

[Huw Powell]

> Actually, they're just simple switches. One for low engine speeds  
> (below 2800 RPM) and one for high engine speeds. The high speed one  
> has a higher switch point. They're very cheap, and they do go bad.

Keep in mind that one of them shares a housing/mounting hole with the 
gauge sender on pressure gauge equipped cars.  I can never remember 
which one.

-- 
Huw Powell

http://www.humanspeakers.com/audi

http://www.humanthoughts.org/