Prior tune

[chrisrk89]

I just picked up a 2023 ZR2 1500 this weekend and I’m wondering if there’s a way to tell if it’s been tuned previously. The dealership didn’t know anything but it seems like the auto stop/start is disabled. Which also makes me believe the AFM/DFM is also disabled.

 

[mksz51]

Might not be a tune but instead a disabling device such as the Range. Take a look on the ECM in the driver's side wheel well.

https://documents.rangetechnology.com/ec0207023b2d3617af446abf0c181931c44b1500.pdf

 

[chrisrk89]

Might not be a tune but instead a disabling device such as the Range. Take a look on the ECM in the driver's side wheel well.

https://documents.rangetechnology.com/ec0207023b2d3617af446abf0c181931c44b1500.pdf

Thank you I’ll take a look at that!

 

[MO_ZR2]

There is also a device that mounts behind the dash - https://www.autostopeliminator.com/...yAULGctTJ7-S3d4jKPkdeT5u0ycqsHc4xNf5K_mpwEp-G