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DISCUSSION => Engine + Driveline => Topic started by: SonomaGTLN2 on March 20, 2010, 09:01:36 AM

Title: A/C Idle RPM Increase
Post by: SonomaGTLN2 on March 20, 2010, 09:01:36 AM

Guys,
I've found that with my auxiliary cooling fan on, my car cools a little quicker at around 1000 - 1500 rpm. Being a motor swap, I do not have A/C or any heater controls on this car. Looking thru the ETM I see the two wires in the 4-way connector on the engine harness right near the ECU need to go to 12V in order to tell the computer to increase the idle (as when A/C is turned on)...so I did this. When I first enable it, the idle goes to about 1200 rpm and stays there for 3 or so seconds then ramps back down to about 900 rpm.  Is there anything else I might be missing to keep the RPMs up around 1200 constantly? Could the engine sense whether it is under the A/C compressor load and adjust accordingly?

Thanks,
AJ

Title: A/C Idle RPM Increase
Post by: flyinglizard on March 21, 2010, 05:55:11 PM

The Idle motor corrects for this.   You can adjust the throttle stop for idle speed  and disconnect the Idle motor.       maybe