So regarding the e78 ecm i tried flashing my ecm with the 1.4 cruze calibrations and the fans do work as they should but? the car wont start to test all other things and 1 more issue with flashing with the cruze file calibration so many tables will be missed.

There is another pricy option which is to convert it to pwm by using pin 41 only just as the suburban so lets try figuring out any other way