Permanently Disable Ac

[mrsr32]

in my r32 rb20det, what is the best way to disable the ac so the ecu never sees the signal? cut pin 9 or 46 by the ecu? or do it at the back of the climate control unit?

I don't want the ac signal to affect the ecu map. and you can't demist the damn windscreen without a/c on.

another thing that bugs me is there is no demist/feet mode.

[kitto]

Why do you want to remove the A/C request signal to the ECU?

There is no map for the A/C. The ECU turns the A/C on when requested but only under a few conditions. I believe these are; When not at full throttle and when the engine is not overheating. The ECU also bumps up idle when the A/C is requested.

Im not sure what the reason is for removing it?

You can demist your windzcreen with hot air as well..

[mrsr32]

my car has no ac, it has all been removed.

[mad082]

if the ac has been removed then there is no point dicking around with the wiring, etc. as said, the ac has very little effect on the ecu, other than altering the AAC valve to make sure it still idles with the extra load on the engine. and if the compressor has been removed then the ecu won't try and do anything. it will think the ac is off as it requires a signal back from the compressor to say that it's engaged

[Dose Pipe Sutututu]

Chop Pin 46 on the ECU, done.