EFIDynoTuning Forum

Sorry again, not pin 50! pin 10 to the a/c 12v side.

In Binary Editor, I only have the GUF1 strategy and I believe when I open the A9L2 calibration it doesn't make sense.

No I am not, is there some parameters that need to be changed to make the fans come on when the A/C is turned on? Also, does the wire from pin 50 go to the "hot" 12v side of the A/C clutch power?

Also, I don't have the WOT A/C cut out relay in the system.

Thank you for the quick response! I have my two fan relays being triggered off of pin 41 and working (high speed fan set up only). I also have pin 50 going to the 12v side of the A/C clutch so the eec will know the A/C is on. I don't understand how to get the fans to kick on when I turn on the A/C.

Sorry, this is a mass air conversion with an A9P and a Moates chip.

After installing electric fans on my truck I ran into the problem of ever time I turn the A/C on I get a rough/surging idle and the truck will die. The strange thing is that the wide band shows the truck to go from 14.6 AFR to 12; a data log shows the O2s to shift to the lower side of the mid voltage range. At first I thought that it was a low voltage issue (and it was pulling it down to 11.5vdc), so I got a shop to build me a good alternator that actually supports 130 amps at idle and a new battery and now I am getting 14.2vdc all the time like it should be. The issue remains the same: runs great until you turn the a/c on. It also causes the voltage meter on the dash to instantly jump down a couple of volts every time I turn the A/C on but yet a meter on the battery does not reflect this. I have opened up the wiring harness and been looking for a short or a problem but have not found anything. Any ideas on this situation would be greatly appreciated.