J Turns - port the option to non-piu?

[bigtexan99]

I read somewhere that the PIU are programmed to detect when a J turn maneuver is being performed and to assist with the execution.

Is it possible to port that programming to a non PIU model?

 

[kobresia]

I'd think that any transmission calibration & learned strategies are stored in the module on the front of the transmission.

I don't know if that can be reprogrammed through FORSCAN, although there is a powertrain calibration code on the doorjam label. If I had to guess, folks with IDS can enter that code somewhere in the interface to push a new calibration strategy to the PCM, essentially telling it that it's a different part number.

Another thing to be aware of is that those calibration strategies seem to take all elements of the powertrain into consideration, including tire size and axle ratios.

 

[Kikinz24]

The tune itself is different in the transmission. I have hp tuners and pulled files from my piu a stock sport . Fuel and spark is pretty much exact. But the transmission values are different . It's not so much a j turn option . It's faster kickdown in gears. The 3-2 and 3-1 kickdown is different for faster downshift and acceleration. You would need an actual pcm tuner to actually change these..