A/C on during self test - Ranger-Forums - The Ultimate Ford Ranger Resource


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Old 08-03-2011
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Join Date: Aug 2011
Location: Vacaville, CA
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A/C on during self test

I have a 94 Ranger, and the check engine light came on a while ago. I checked the system and one code was a faulty EGR pressure sensor valve. I replaced it, and the light stayed off. Another code that was throwing the light on was A/C on during self test, but the A/C wasn't on at all when I checked the system. The light still comes on when the air is on. What could be causing this? What do I need to replace? Thanks
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