Does Maximum Throttle Disengage A.C. compressor?

[nathannookie]

Does fully depressing the accelerator disengage the A.C. compressor, to give that extra bit of horse power?

Some cars, like Mustangs, did this, but just wondering about the 4Runner.

When I know I'm going to race someone, or just need that extra power, I hit the A.C. button, turning it off.....BUT maybe the computer does it for me?

 

[bulldog-yota]

Good question, but I have no idea. So bump. Thai??

 

[rando]

This is from the wiring manual. The last bullet appears to answer your question.

Air Conditioning Operation
The A/C control assembly receives various signals, I.E., the engine RPM from the engine control module, out side air temperature signal from the A/C ambient temp. sensor and coolant temperature from the engine control module, etc. When the engine is started and the A/C SW (A/C control assembly) is on, a signal is input to the A/C control assembly. As a result, the ground circuit in A/C control assembly is closed and current flows from IG1 fuse to TERMINAL 1 of the MG CLT relay to TERMINAL 2 to TERMINAL ACMG of the engine control module to TERMINAL HP to GROUND, turning the MG CLT relay on, so that the magnetic clutch is on and the A/C compressor operates. If the A/C control assembly detects the following conditions, it stops the air conditioning:
* Evaporator outlet air is too low.
* There is a marked difference between the compressor speed and the engine speed.
* The refrigerant pressure is abnormally high or abnormally low.
* The engine speed is too low.
* Rapid acceleration occurs.

 

[Vortec4800]

My friend's 95 M3 does this, whenever he drives sporty I get hot...

 

[TRD04RUNNER]

My friend's 95 M3 does this, whenever he drives sporty I get hot...

Only when the TC is OFF!

 

[nathannookie]

This is from the wiring manual. The last bullet appears to answer your question.

Air Conditioning Operation
The A/C control assembly receives various signals, I.E., the engine RPM from the engine control module, out side air temperature signal from the A/C ambient temp. sensor and coolant temperature from the engine control module, etc. When the engine is started and the A/C SW (A/C control assembly) is on, a signal is input to the A/C control assembly. As a result, the ground circuit in A/C control assembly is closed and current flows from IG1 fuse to TERMINAL 1 of the MG CLT relay to TERMINAL 2 to TERMINAL ACMG of the engine control module to TERMINAL HP to GROUND, turning the MG CLT relay on, so that the magnetic clutch is on and the A/C compressor operates. If the A/C control assembly detects the following conditions, it stops the air conditioning:
* Evaporator outlet air is too low.
* There is a marked difference between the compressor speed and the engine speed.
* The refrigerant pressure is abnormally high or abnormally low.
* The engine speed is too low.
* Rapid acceleration occurs.

Thanks Rando.

I guess I don't need to kill the AC anymore, when I anticipate needing extra power.

 

[Vortec4800]

Only when the TC is OFF!

The 95 model year doesn't have TC, so its always off.

TC was one of the additions for the 96 and up years along with the new 3.2L engine.