When you flash the ECM, it does not matter what position the switch is in...
When you flash the ECM, it does not matter what position the switch is in...
2007 CC/SB 4WD, McRat EFI Live, Trans, Trans Cooler and C3 clutch oiling mod by Mike L., SD Sleeves, SoCal Diesel
2002 CC/DRW 2WD, McRat EFI Live, Trans, Trans Cooler and C3 clutch oiling mod by Mike L., SoCal Diesel