Further to what Rene wrote above: this problem arose immediately after you had a bunch of electrical work done by PIM. Do they know what they’re doing? If so, how do you know? Keep in mind, one of their mods was questionable at best (cooling fan always “on”). If they won’t (or can’t) fix the problem, flat deck or trailer the car to Don Byars. There are others but I have first hand experience with Don, so I’m happy to recommend him.
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