Flashing tunes with different firmware back and forth?

[Nitrorocket]

Is there anything to change or that has to be done to flash in an older firmware version tune file when you have been running one with a newer firmware? Or does the Motec M142 master and slave allow the ability to flash in whatever version firmware tune file you want to run at the time?

[Stephen Dean]

As long as the M1 is licenced then you can swap be tween Firmware version. Note though, that a lot of the Master/Slave Firmware's have to have matching versions in both ECU's otherwise they will not work, or have incorrect operation.