Still hunting the A/C buzzkill...it's 90+ degrees on my 40 minute interstate drive home from work a lot of days here and I only have A/C if my MAP value is less than 50KpA. There's nothing in the current XDF that links A/C clutch disable/enable with MAP, and I'm hunting through the dissassembly and not finding much. Mostly on the T-Side, I can find this:

RAM:0089 ; A/C BIT STATUS WORD
RAM:0089 ; 0 0 = A/C CLUTCH ENABLED
RAM:0089 ; 1 1 = A/C WOT LOGIC USING N/V TIME THRESHOLD
RAM:0089 ; 2 1 = A/C PRESSURE REQUESTS FAN
RAM:0089 ; 3 1 = A/C PRESSURE REQUESTS FAN # 2
RAM:0089 ; 4 1 = A/C LOAD SWAP (A/C FORCED OFF)
RAM:0089 ; 5 1 = A/C OLD (6.25 MS.) 3RD GEAR FLAG
RAM:0089 ; 6 1 = A/C EVAP TEMPERATURE CLUTCH DISABLE (F-only?)
RAM:0089 ; 7 1 = A/C CFIV FREON LOW CLUTCH DISABLE (F-only?)

It seems that if I can figure out what byte 0089 bit 4, does, I might have a chance at fixing this. I suspect it's just another location that needs to pick up the new 2-bar map value, because if it's meant to force the A/C off at max load of 100kpA, and it did NOT get the new 2-bar map value, it would tend to force the A/C off at the 50kpA with the new MAP sensor. Problem is, I don't have the slightest idea of how or where to find it.

I don't think it's bit 6 or 7, as bit 6 is disabled and bit 7 isn't being toggled (it's currently in the ADX as part of the datastream). Currently, the ADX is logging bit 0, bit 2, bit 3.