OK

Now , one more test.
I think you can handle this one cuz we will be revisiting an earlier post.

That OTHER sesnor that I had you jumper with the 6" pigtail wires on it [ over at drier].

I want you to slip the insulation back at the connections of those 2 pigtail wires and jumper across there with a wire [ or you can unplug the pigtail and plug a spade fuse in its place as a jumper.
That will give you a constant low fan [ which is where this whole mess stsrted at].
Plug the high fan blu sesnor back in and try the car with this low fan set-up. Also try the a/c and that line you know gets cold and tell me what we have, both ac wise and temp gauge ...

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A Dalton