7747 A/C enable

[Brent Obermiller]

Unforunately, I now believe that Ludis is right...that is the polarity of 
the computer output is opposite (not the state of the output).  I found the 
A/C wasn't cycling AFTER grenading the evaporator (ESTER oil is very messy). 
  Originally, I JUST switched output contacts on the relay (as many of you 
suggested), then the compressor engaged on request, and doing this 
eliminated the pressure switch from the circuit, somehow; For record the 
blame is mine as I did this BEFORE writing for everyone's advice.  I bought 
a new evaporator and rewired the car to the 92 Roadmaster Schematic. Let 
this serve as a public service message to save money ($125 evaporator and 
Freon charge cost).
-Brent

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mailto:ober_b at sssnet.com


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