Hi,
I have a 2009 Silverado 5.3 with 4l80e. I am swapping in a 6.2 from a 2009 Yukon XL (also had a 4l80e). I've finished the conversion and am having difficulty with the ECM / Theft Deterrent and segment swapper function. The 6.2 ECM triggers the Theft Deterrent in the truck and it won't turn over. Not a big surprise. So I believe I need to use the 5.3 ECM and program that to run the 6.2. I am hoping to use the segment swapper function to do that.
When I try that Swapper function, I only see the available segments are transmission segments - no engine modules or controls. I read elsewhere on this forum that the OS has to match for the segment swapper function to work. I looked up the OS for the 5.3 and the 6.2 and they are different but according to here they are compatible.
5.3 OS being the 983 variety and the 6.2 the 501. Does this difference in OS matter for the 5.3 ECM to control the 6.2 engine? From a quick glance, I see all of the same tabs and controls in the two stock files. Is it a matter of manual input from the comparison?
Any thoughts are appreciated on how best to resolve the ECM control and make this thing run.
Also, total newbie here - I'll do my best to follow!