Is there a quick way to tell if an ECM is for a 2 or 4WD by looking at the tune? I have the ECM but just not sure what it came out of as it was given to me.
Swapped a 1999 4.8 into a 2001 Silverado that used to have a 5.3. (Cause the 5.3 was pooched and we had the 4.8 laying around the shop) I have the said 0411 ECM here with a 4.8 tune in it so I was just going to license that and use it but not sure what I have to do to get 4WD to work in the 2001.
Did a bunch of searches but can't come up with a definitive answer. Thanks for any help anybody can provide.