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How to update firmware and load a base tune

Step 1. Download the newest version of SpeedyLoader, the Speeduino firmware and base tune program.
Step 2. Use SpeedyLoader to update to the firmware of your choice.
Step 3. Click “Get Base Tune”, this will save a copy of the base tune you select to your “Downloads” folder.
Note 1: It’s important that your base tune that you select matches the firmware signature that comes on it. Loading mystery tunes into mystery firmware will create interesting results.
Note 2: It’s extremely important that you select a base tune that has the correct Board Type that you purchased. If you load a tune with the incorrect board type, it can cause catastrophic damage to your car or ECU.

4 thoughts on “How to update firmware and load a base tune

  1. Hey Chris, I recently bought a 94-95 pnp ecu 2nd hand. Just looking for some help getting my ecu set up correctly. Some questions I have are
    1. Where do I download the toning soft ware?
    2. Being this ecu is second hand, I do not have any kind of instruction of installing and updates firmware/software. Is this something you may provide?

    1. All of our ecus tune with Tunerstudio.
      Join the SpeedyEFI troubleshooting and support facebook group if you haven’t already.
      Firmware and tune are in Speedyloader, if you are starting out, we suggest 202012 firmware.
      Use the 89-95 base tune, set injectors to semi-seq, set required fuel, set fuel pump to A9, and calibrate all sensors.

  2. i recently picked up a 91 1.6 turbo miata, came equipped with one of these speedy efi ecus. never heard of it, never seen it, but i am wondering how do i get the current tune off this ecu. or how can i access the tube to make changes? thanks in advanced

    1. Everything is done with Tunerstudio. You will need the arduino IDE from for the driver package as well.

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