Thanks thats very useful. Wish I had known about that webiste for loom etc.
The main deal on the harness is the position of the injectors. Id have to pull the harness out again but I think I circled them here. Just that one is so short in the middle of the harness and the other is way further up.
On the AC wiring - Id rather let the PCM control the FAN on based on dash control or engine temps. BUt also allow the AC clutch to be disabled on high/low.
I think thats typically done via a trinary switch ....... so when head pressure gets too high or engine temp gets too high - the fan will automatically come on.
Guess the other option is just to run the fan all the time. Bypass tempsensor and PCM.