Which tuner to disable AFM?

[dictum]

I see

 

[Geotrash]

This guy will do it for $50 if you ship him your ECU. Some guys here have had it done and say the turnaround was quick.

AFM Delete

 

[iamdub]

I've had good luck with DiabloSport but can't get mine to go beyond the boot screen, it does not go into the configure mode. Just hangs.

It's an older i2, maybe get the newer DiabloSport inTune i3? I did a mid-octane canned tune on the Tahoe I used to have, now want to do the same thing to the 2013 Yukon with the 6.2L and the unneeded AFM.

Otherwise use HP tuners but it's more expensive and a real tuner. Not sure I want to tune it extensively.

@Geotrash beat me to it.
+1 for lt1swap.com's service.

 

[Charlie207]

will driving in the M mode disable AFM?

It would for my 2014. Shift into Manual Mode, and select gear 5. It would turn off AFM, and lock the engine into V8 mode.

The transmission would still shift as if it never had AFM, eg: start in 1st gear from a stop, and shift normally. Just no annoying 4cyl drone.