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Need to know what that square gray plastic connetor on the firewall controls 200 1986

uid 27's pic
posted by  Art Benstein on  Sun Sep 12 05:26 CST 2010
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last visit: Fri Oct 17 20:10 CST 2014
[RELATED]

On an '86, none of the functions necessary to run the motor pass through that gray connector. Black is oil pressure warning light (ground it and the light goes on in the instrument panel). Yellow is temp gauge. Ground it, and your temp gauge will peg hot. Red is the alternator exciter wire. Ground it and the battery warning lamp will light. Leave it open and the battery will probably never get recharged. The yellow/blue is battery from the ignition switch to crank the motor. Apply battery + to it and your starter will crank.

As for minimum connection to get the motor operational, the important harness passes through the firewall near the windshield wiper motor. That one connects the engine management computer to the engine.
--
Art Benstein near Baltimore

If you tell the truth, you don't have to remember anything.






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