Remote Tuning Process

Pre-Tune Tasks

  • Motorsport Electronics ME221, ME360 or ME442 ECU

  • Wideband AFR gauge or ECU built in wideband

  • Windows laptop with at least 30 minutes of battery life

  • Boost solenoid fitted for turbocharged cars wanting more than wastegate boost pressure

  • A knock sensor is highly recommended but not essential (all MX5s from 1999 onward have a knock sensor installed from the factory)

Please skip this step if the car already starts and runs well (eg has been tuned elsewhere)

  • Basemaps can be loaded from within MEITE (see screenshot below)
  • Often, the exact combination of car, year, engine size, injectors, turbo etc will not be available.
    • Firmware version must be correct
    • ECU model must be correct
    • Injectors should be correct if possible
      • If a correct injector basemap does not exist, choose the most similar one and correct both size and dead times.
    • Turbo and supercharged maps are interchangeable
    • Engine size can be corrected in the engine driver

Note: the car may not run well on a basemap but it should start and continue to run. Some throttle input may be required to keep the car running in some cases. In nearly all cases when the car will not start on a basemap, it is due to a mechanical or electrical fault. In this case, please ensure you have thoroughly read the ECU installation manual.

See here for how to make a log.

  • Start logging before starting the car
  • Log the start and idle up to temperature
  • If the car is drivable, please also log a short drive
    • Please do not use full throttle or high RPM at this stage unless the car is already known to run well
    • The more driving data we receive, the more we will be able to achieve in the first update
    • If you notice any dangerous conditions eg excessively rich at low load or excessively lean at high load, do not drive the car for longer than necessary
  • By default, the logs save to desktop/MELogs. The log filename will be the ECU model, date and time eg ME442-V2B-PNP_2024_05_25_10_22_58.csv. Logginginfo.xml is not required.

 

Please follow this link for instructions on how to save the calibration file from the ECU

Please purchase the Full Remote Tune or Basic Remote Tune from our website.

If you have specific needs eg modification to an existing tune, please contact us to discuss.

Please ensure that you have performed all of the above steps before filling in the tune information form!

Tune Information Form

We aim to provide the first updated calibration file within 48hrs of receiving a completed tune information form. We will contact you by email when the first adjusted calibration file is ready for you to load onto your ECU.

Tuning process

  1. We will review the form and files that you have uploaded and check for any issues that need correcting before the tuning can begin.
  2. We aim to send each updated calibration file within 48hrs from receiving log data and this will be shared through Google Drive.
  3. After each updated calibration file, we will require you to make a new log. The more driving you can do in each log, the more we can refine the map.
  4. Each time you drive the car with a new calibration file, you should notice an improvement. We will continue to iterate until the car drives as well as possible with your individual engine and setup.