Suzuki SV650 ECU Decoder
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Suzuki SV650 ECU Decoder

This is the Arduino code (for a PJRC Teensy 2.0) and necessary CAD/schematic files for creating a PCB to creating your own 2nd Generation SV650 ECU Decoder to replace the error lights & codes normally displayed by the stock dash unit.

This supports the following:

  • Oil pressure warning light
  • Neutral light
  • EFI warning light
  • Low fuel light *
  • Display the water temp from the the stock water temp sensor
  • Ability to decode EFI error codes from the SV650 ECU
  • TPS adjustment indicator **

[*] Note: Untested.

[**] Note: Normally the 4 digit LED display shows the water temp. To show the TPS indicator or ECU error codes, you’ll need to use a “Suzuki diagnostic tool” (aka a paperclip) to short two wires per the shop manual.

More information about this project is available on my blog and on the wiki.