Ford Focus ST225 Wi-Fi PCM Programmer

Save the original engine map from your Ford Focus Mk2 ST225 and program its engine ECU from your phone. The CuSToMod programmer plugs into the car’s OBD port and opens its controls in your browser over the tool’s own Wi-Fi network.

Choose your package

• Programmer only · £175. Includes the Wi-Fi PCM programmer and the factory AG calibration update file.
• Programmer + Stage 1 map · £225. Includes the same programmer and factory AG update file, plus the Stage 1 tuning map.

Compatibility and the included AG update

The programmer works with the Bosch ME9.0 engine ECU across the full Ford Focus Mk2 ST225 range. Both packages include the file to bring an earlier AE or AF ECU up to the factory AG calibration. If your ECU already runs AG, you can go straight to saving its original map. The optional Stage 1 map is a separate tuning calibration for use once the ECU is on AG.

How it works

1. Identify the ECU. Join the programmer’s Wi-Fi and select Read connected PCM to see the VIN, Bosch hardware number and Ford software number.
2. Prepare for programming. Save a read of the current ECU. If it runs AE or AF, follow the programmer’s Update to AG steps using the included file. Once on AG, save a verified read so the programmer can protect that ECU’s original AG map.
3. Program a map. On the Program screen, choose a compatible map and review it before writing. The tool checks the ECU identity, saved original and supply voltage, then reads the calibration back to verify the write.
4. Return to the original AG map. The Recovery screen lets you verify the current map and restore that ECU’s protected original AG map.

The screenshots show the programmer’s browser interface with a simulated ECU and an example map.