Live Data Changes

When modifying the M1 ECU within M1 Tune, any change made is "live", meaning the change happens in real time the moment the new value is entered. That is, when an engine is on a site and the value of that site is changed, the ECU will immediately start using the new value.

Important: Even though the ECU may be operating on new values, this does not mean they are saved, see Saving Changes to ECU Data

In some instances, a live change is not possible. This occurs where a parameter value has underlying dependencies requiring simultaneous update of all relevant parameters. In these circumstances the change will require an ECU reset to take effect.

Parameters that require an ECU reset following a change can be identified by the red flag after their name.