well just to eliminate what it might be I would check and see if the wiring is all connected near the ecu where the S-afc was spliced in. I know when installing an afc you have to cut one of the wires to the ecu. so did you connect that wire considering there isn't a S-afc in there anymore?

this question is referring to problem #1 considering air conditioning is non-existent in my dictionary of car luxuries just another 10-15lbs in my books