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Build Status

Please Donate!

Research and development takes time and money. Since it is my goal to keep this project opensource, if you find this project useful, please consider donating.

paypal

Software

Windows

HondaECU for Windows requires the libusbK driver. Download Zadig and use it to install the libusbK driver. There is a usage guide on the Zadig website if you need help using it. Once libusbK is installed for your FTDI device, download the latest release of HondaECU.exe.

From source

https://conda.io/miniconda.html

pip install -r requirements.txt --user

Checksums

Model Year ROM Size Keihin Code Checksum
Address
Start
Offset
CPU Pinout
(Gnd,+12,Kline)
Z125M 2019 92 kb 38770-K0F-A01 0 8000 M16C 10,1,30
CRF110F 2019 64 kb 38770-KYK-D12 0 8000 M16C 10,1,30
MSX125 2017 64 kb 38770-K26-B13 0 8000 M16C 10,1,30
MSX125 2014 48 kb 38770-K26-911 0 4000 M16C 10,1,30
CBR250R 2012 56 kb 38770-KYJ-971 DFEF
CBR250R HRC 2014 256 kb 38770-K33-R51 18FFE
CBR250RR HRC 2017 1024 kb 38770-K64-R02 7FFF8
CRF250R 2011 256 kb 38770-KRN-E52 1FFFA
CRF250R 2013 256 kb 38770-KRN-E73 18FFE
CRF250R 2014 256 kb 38770-KRN-E82 19FFE
CRF250R 2015 256 kb 38770-KRN-E92 19FFE
NSF250R 2013 256 kb 38770-NX7-033 18FFE
VTR250 2015 256 kb 38770-KFK-632 3FFF8
CBR300R HRC 2014 256 kb 38770-K33-R01 18FFE
CB300 2008-2012 56 kb 38770-KVK-xxx DFEF
SH300 2009 56 kb 38770-KTW-901 DFEF
XRE 300 2009-2012 56 kb 38770-KWT-xxx DFEF
CRF450R 2009 256 kb 38770-MEN-E21 1FFFA
CRF450R 2011 256 kb 38770-MEN-E52 1FFFA
CRF450R 2014 256 kb 38770-MEN-A73 19FFE
CB500R 2014 256 kb 38770-MGZ-B01 3FFF8 PPC 12,23,25
CBR600RR 2007-2016 256 kb 38770-Mxx-xxx 3FFF8 M32R
CB600F 2010 256 kb 38770-MGM-B11 3FFF8
CB650F 2015 256 kb 38770-MJE-B41 3FFF8
CB600F/R 2010-2011 256 kb 38770-MFG-Bxx- 3FFF8
Transalp700 2013 256 kb 38770-MFF-B01 3FFF8
Shadow 750 2009 256 kb 38770-MGE-B21 3FFF8
NC750X 2015 256 kb 38770-Mxx-xxx 3FFF8
NC750S 2016 512 kb 38770-MJL-D72 7FFF8
VFR800F 2015 512 kb 38770-MJM-J13 7FFF8
CB1000R 2008-2016 256 kb 38770-Mxx-xxx 3FFF8
CBR1000RR 2004-2005 256 kb 38770-MEL-xxx 3FFFC M32R
CBR1000RR 2006-2016 256 kb 38770-Mxx-xxx 3FFF8 M32R
CBR1000RR 2017 1024 kb 38770-MKFA-D72 FFFF8
VFR1200F 2010 1024 kb 38770-MGE-D02 7FFF8
GL1800 2015 256 kb 38770-MJK-J21 3FFF8

Hardware

The easiest way to talk to the ECU via the k-line is a USB to serial (TTL) converter, and a serial to k-line converter. This code assumes you are using a FTDI based USB to serial converter. For the serial to k-line converter, I recommend the schematic below that uses optocouplers to keep the bike power isolated from your electronics.

kline_interface

Bench Harness

If you make a bench harness to work with your ECU you will need a 2.5 amp power supply. The ECU will power-up with a 2.0 amp power supply but transfer rates will be slow and you will get CRC errors.

Tuning Software

General Resources

MCU Resources