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Rodsrsr Rodsrsr is offline
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Join Date: Jul 2006
Location: Nor Cal
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Quote:
Originally Posted by JFairman View Post
Brown wire insulation is ground on all the German cars I've seen.
Does it use a sending unit for air pressure reading or does an intercooler or manifold vacuum hose attach to a fitting on the back?
One of the wires is probably faceplate illumination that comes on with the parking lights and another wire would be switched 12 volts.

Agreed. The Black/Blu wire is usually for lights, Red is switched power, Brown is ground. Its got to have a place for vacuum hose on the back.
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Old 10-10-2013, 12:57 PM
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