When the firmware utility asks you 'Preserve sensor calibrations, and I/O pin states (y,n, default: y)?' answer 'n'. This resets the sensor calibrations and all input/output to the factory state, giving a common starting point on which to build a map. If you are unsure as to which firmware file to download, look up the latest firmware here.įinally follow the MS3 TunerStudioMS Setup instructions to set up a TunerStudio project for your tuning sessions. The options in the 'Settings' tab can be left as defaults.Ĭonfigure The MS3X / MS3-Pro ECU To Run The Rotary Engineīasic parameters need to be set up in the ECU to tell it the displacement of the engine, how many injectors it has, the trigger and ignition setup and what to do with its outputs. The MS3 firmware development is on going so it is possible that some of the screens you see here may not exactly match the firmware you are running. Each settings page will be shown with a chart of the settings, and a screenshot of what they look like. Any settings that are not mentioned can just be left default.