MoTeC Global Forum

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?

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.