Neo swapped r32 ac issues

[Dspring92]

I've been searching all the fourms and haven't been able to find a solution. Hoping to get some help. Anyways neo swapped my gts25 back in 2018 and recently have been trying to work out some of the less important issues such as the a/c I found my outside air temp sensor a few days ago and was hopeful that would fix the solution I had a shop do a ac conversion from the r12 to the 134a a few months back. Anyways the diagnostic on the ac unit shows the water temp fault but all the temps show fine that the sensors are reading correctly but ac doesn't get cold just warm. The compressor itself doesn't kick on. About the build I'm running stock r34 gtt ecu,  custom built harness from wiring specialties, stock r32 ac compressor never broke the lines during the swap. Any help on this would be greatly appreciated it's spring time in Texas so trying to get this fixed before the 100+ temps this summer.

[Duncan]

Are you sure the pressure switch om the receiver dryer is connected and working?

[blind_elk]

IIRC, there is a little temp sensor that wraps around the heater pipe, up against the firewall (engine-side). That may be the one reporting as faulty.

[GTSBoy]

You also need to do something fancy about the refrigerant pressure switch. The R32 one is 2 wire, I think the R34 one is 3 wire, and I think the R34 ECU doesn't want to work with the R32 switch. Needs some extra wire and a diode, or something else not too hard, but annoying to work out.

Was done on mine, but I can't remember exactly what. Was 10 years ago.

[Dspring92]

Yeah I checked all the sensors and they're good I'm thinking it has to be the switch I can trip the relay to kick it on but the control unit itself doesn't kick it. Anyone happen to know where I can get one of the r34 switches I looked a little today but couldn't find anything.