HondaECU is a software program designed to work with Honda motorcycle ECUs (Electronic Control Units). It allows advanced users to read and modify data from the ECU, which can be used for various purposes such as:

  • Flashing the ECU: This involves rewriting the software that controls the engine and other motorbike functions. It can be used to optimize performance, adjust fuel injection, or remove speed limiters (**disclaimer: modifying engine performance can be risky and may void your warranty).
  • Clearing DTCs (Diagnostic Trouble Codes): These are fault codes stored by the ECU that indicate problems with the motorcycle. HondaECU can be used to read and clear these codes.
  • Live Data: The program can display real-time data from the ECU's sensors, such as engine RPM, throttle position, and coolant temperature.
  • Checksum Verification: Verifies the integrity of firmware files through checksum validation to ensure successful and error-free reprogramming.

Supported Adapters
1Uses D2XX driver.
2Uses OpenPort 2.0 driver.

Latest Stable Release

Note: Requires VC2015Redist

Features & Pricing

HondaECU licenses bind to a single computer. All license versions receive free maintenance and bug-fix updates.

HondaECU Kline: Flash


  • Clear DTCs
  • Read Flash Memory┬╣┬▓
  • Write Flash Memory
  • Read/Write EEPROM

HondaECU CANbus: Full


  • Clear DTCs
  • Write Flash Memory

1 Only reading of Keihin based ECUs is supported at this time.
2 R8C based ECUs with a memory offset of 0x8000 can not be fully read via K-line.