2016 Mustang GT Premium 6speed gear swap issue

[Cashley]

Swapped from 3.31 to 3.73's and having a throttle issue problem. 2nd 3rd 4th gear about 40 mph the throttle cuts in half and car wont accelerate. did not have this issue until the 3.73 swap.

Any input would be great

[K44]

Post tune and log.

[Bill88stang]

Did you adjust the gears in the tune for it ? You can just also adjust them using the vcm scanner

[Cashley]

adjusted in both ecm and bcm although bcm did throw an error code after update.

[K44]

Need to see the tune and log to help you. Otherwise it is a bunch of guesses.

[Plimmer]

I remember having a similar issue with my car, and I disabled Tipin management. Solved the problem, but not sure if that is the correct way to fix issue.