Recently I swapped my ring and pinion in my manual 2020 mustang gt differential to a 4.11 gear ratio. Doing so has caused a powertrain light, I’m woundering if this is because sense the car has auto rev matching and changing it from stock messes with the computer sense the ground speed and rpm don’t match up to stock to when it auto rev matches it’s off by a couple hundred rpm. Do I need to tune my car to recognize the gear ratio somehow?

I recently changed my gears in my 2020 mustang gt...

Questions on 2020 mustang gt differential