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Good to know and thanks for the reply! Just really trying to figure out why it continues to cycle on and off even after following the instructions on the amp thread.Your AC amp looks normal, some of those parts weren’t populated from the factory.
How’s it going guys. So I’ve read up on a/c amp thread and still can’t seem to get my a/c right. Could these couple missing parts/fuses on my amp be causing it?
And no I have not checked the high and low psi pressures. Might do that tomorrowHave you checked your low and high side pressures?
Is the system fully charged?
Try to describe what’s going on, so we can help you.
It’ll only idle up for about 20-30 seconds, then go back down to regular 650 idle. It does that repeatedly.
The compressor is supposed to cycle on and off. The frequency of cycling is probably related to ambient temperature, fan speed and other parameters that effect the load on the evaporator.
These are valid points and true except the last one.The compressor is supposed to cycle on and off. The frequency of cycling is probably related to ambient temperature, fan speed and other parameters that effect the load on the evaporator. If you think it is cycling too much then maybe check the temperature sensor.
I don’t think it is a leak because once it leaks out enough to trip the low pressure switch, I think the compressor would stay off.
I always assumed it should stay at the idle up RPM, Until the a/c or blue button is turned off. I was told by a couple of people and also thought I read it somewhere. Thanks for the clarification! I just want it working like it should.This is what mine does with properly charged R134a. It doesn't stay at 1000 RPM all the time with those components whenever you turn on the A/C. It cycles on and off and idles up the engine when the compressor engages. Sounds like its working properly OP. Are you wanting it to stay at 1000 RPM idle?
What is the proper way to setup the AC Amplifier's "compressor on" dial?? I understand that dial determines what the minimum RPM for the compressor to turn on. But, how do you set that up in conjunction with the AC Idle up speed? And.. what's the correct AC Idle up RPM? I couldn't find that in the FSMs anywhere.
I've got my AC Idle up set at 800 RPM right now, which seems correct.
But, if the compressor will only turn on when the switch is pressed, and pressing the switch automatically raises my RPM to 800, what's the point of having the dial??
I think the AC compressor cycles on and off on every automobile. You just don't notice it so much on newer FI vehicles as they can squirt more fuel into the mixture instead of raising the idle speed. I do notice the cycling on my cira 2000-2003 BMWs (E46 & E53).I always assumed it should stay at the idle up RPM, Until the a/c or blue button is turned off. I was told by a couple of people and also thought I read it somewhere. Thanks for the clarification! I just want it working like it should.