Maybe my memory not so good.
I recall at least one of my cars losing AC cooling when accelerating.
If there is no WOT cutoff switch it should actually get colder, since RPMs go up.
In any case, many cars have them, some disengage the AC clutch when the condensor pressure gets too high.
"Also understand that some manufacturers use A/C compressor cut out switches for other purposes. As an example, the WOT or Wide Open Throttle cut off switch disengages the compressor when the driver forces the engine throttle wide open under sever acceleration.
Other A/C compressor cut out switches will disengage the A/C compressor when power steer pressures rise too high. That usually occurs during parking maneuvers. On smaller engines, disengaging the compressor will help prevent the engine from stalling."
So junkyards should be full of them. In Cali we have lots of self-service junkyards, good for browsing for this sort of "hey maybe this will work" stuff.
__________________ 02 Insight 5spd; 57.8 mpg ave in 215K miles 6#agm motorcycle battery (April 2012) MIMA 08 Prius 184K Warm Air Snorkle 95 Metro 5spd 320K miles
I bought a 2005 MT Insight a few months ago and it's time to do a few improvements.
This morning I dug down to the ECM under the passengers side floor board to start the A/C clutch relay disable from the gas pedal install. I cut the RED A/C clutch wire [wire to the ECM-A15] and it does cut out the A/C compressor and there are no error codes produced etc.
I temporarily installed a pair of wires from the two ends of the cut RED wire that reach to the gas pedal area. Right now the two wires are connected together to allow the A/C to operate as Honda intended.
I'll do the micro switch install when the mood hits. I also have to install an enable switch and a delay circuit for the MT car. There are two 12mm(?) bolts that hold the gas pedal to the firewall that look good as a way to mount a micro-switch.
There's an easy way to do this if you want a simple, electronically-adjusted A/C autostop. You just need an op-amp, a potentiometer, and a relay (essentially).
Hook up the op-amp's inputs to the TPS and your potentiometer and use the op-amp as a comparator to activate the relay. Have the relay shut off the compressor's clutch solenoid. Easy peasy, and you can have a little knob to adjust it while driving.
Or hook a vacuum switch to the AC compressor and adjust to your liking.
__________________
01 MT "Little Red Rocket"
The first "TURBOCHARGED" Hybrid, Insight G1- (01/2003)
MaxIMA Battery (Serial #2), on 8/25/12 @ 301,520 miles
Use: 320,000 mi. @ 57.8 LMPG
There's an easy way to do this if you want a simple, electronically-adjusted A/C autostop. You just need an op-amp, a potentiometer, and a relay (essentially).
Hook up the op-amp's inputs to the TPS and your potentiometer and use the op-amp as a comparator to activate the relay. Have the relay shut off the compressor's clutch solenoid. Easy peasy, and you can have a little knob to adjust it while driving.
That's easier than getting my/your head stuck under the brake pedal.
Use a MosFet instead of the relay as I did.
Willie: I think the vacuum switch would not work as well as a constant speed shut off because the vacuum " of Hg would vary too much depending on load even if you didn't move the gas pedal.
Yeah you are probably right.
I'll just keep pushing the AC on/off button.
Thanks
Willie
__________________
01 MT "Little Red Rocket"
The first "TURBOCHARGED" Hybrid, Insight G1- (01/2003)
MaxIMA Battery (Serial #2), on 8/25/12 @ 301,520 miles
Use: 320,000 mi. @ 57.8 LMPG
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6#agm motorcycle battery (April 2012) MIMA 
08 Prius 184K Warm Air Snorkle
