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Electrical / Idle control when AC is ON
« on: February 04, 2016, 10:24:40 PM »
Hi, i need a little help. My e30 has an e36 m42 swap by previous owner. My problem is the idle speed drops when AC is ON. As if the ICV is not responding.
I did some checking , all 3 signals to DME were not connected.
#48: compressor relay output
#85: pressure switch input
#86: anti stall input
My car is not using stock acond system. I am using an aftermarket electronic thermostat to control the compressor.
Anyway, i have figured out dme pin#48 and pin#85. When pin#85 is grounded, pin#48 activated. And the ICV did respond.
But pin#86 does nothing if it is connected to 12V or GND or OPEN.
Any idea, on how what kind of input signal pin#86 is looking for?
Looking forward to hearing from you. Thank you.
I did some checking , all 3 signals to DME were not connected.
#48: compressor relay output
#85: pressure switch input
#86: anti stall input
My car is not using stock acond system. I am using an aftermarket electronic thermostat to control the compressor.
Anyway, i have figured out dme pin#48 and pin#85. When pin#85 is grounded, pin#48 activated. And the ICV did respond.
But pin#86 does nothing if it is connected to 12V or GND or OPEN.
Any idea, on how what kind of input signal pin#86 is looking for?
Looking forward to hearing from you. Thank you.