looking for a way to disable the AFM on 6.2 gas

[JERRY HUFFMAN]

I had a 2020 5.3 1500 GMC in Dec 2020. I drove a 6.2 while my 5.3 was in service. THAT DID IT !! I traded for a 6.2 Denali that day.6 .2 badass power and the 5.3 was weaker. 

I have the RANGER plug in for the 5.3 and it works perfectly on the 5.3, BUT, the 6.2 does not recognize the codes. I will sell the 5.3 RANGER for $125 plus postage. If interested contact [email protected]. I would like to know if anyone has a tune for the 2020 6.2. 

I had a 2010 6.2 camaro but that tune wont work on the Denali.

 

Jerry Huffman

[AdamAT4]

I believe the ECM is locked up tight on the 2020 trucks. My dealer couldn't even calibrate for tire size apparently.

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[TRKLGND]

HP Tuners can tune a 2019 - 2020 if you send the ECU to them to be physically modified first.  No more plug in tunes.  GM has locked the ECU down like they have done the TCU.