Quote:
Originally Posted by kglowacky
going thru the same process of getting my ac working. when I got my harness back from the rebuilder he left a wire on it saying AC. I called and asked why he left it on there because I said no to ac on the build. He said they made a mistake just ignore it. Now I am wondering if he didn't do me a favor by leaving it. My question is is this wire connect to 12v or a ground or does it connect to the compressor and the compressor tell the ECM to increase rpms to handle the extra load. or connect to a relay terminal. Assume it is pin#17.
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I can’t answer the second half, I’m not an expert in the wiring harness stuff like some of the other guys on here are. If the wire he left in is green/white, it goes to the compressor, and not to the pcm (is the way I understand it) it’s more work to completely remove the wire and even more work to add it later if you changed your mind.
Did he leave the factory plug for the ac compressor on your harness?