Adjusting cooling fans to operate at highway speeds if needed?
Gentleman,
This is for 09' GMC SIERRA 2500HD with stock E38 computer. It uses factory dual fans setup. Everything is tuned as stock (same as 1500 Series trucks).
These are the only options I got to play with for cooling fans:
1- Fan Desired % vs. AC Pressure
2- Fan Desired % vs. ECT
I have discovered through the scanner that the factory default OFF for the fans is when the speed reaches ~45 mph regardless of the other two parameters, I need to know if I can alter this. If so, please let me know in details and which beta will support this? I think maybe if I update the software/beta other parameters may be visible? If anyone has any experience directly related to this, please let me know. I'm sure others would benefit.
Thanks!