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Posted

I have a 2020 Sierra 2dr WT. If I’m correct it has the L82 5.3. 
 

My question is as an older tech engine, does it share the same ECM as the newer DFM trucks or does it holdover the ECM from the 2018 and older AFM trucks. 
 

I know the older ECM’s are easier to program. 

Posted

It's still the newer E90 computer. All 2019+ T1 trucks with a V8 run that computer.

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