PCMTuner Failed to Write EDC17C84 via OBD?

By | February 23, 2023


I have a problem with pcmtuner flash. I can read but can’t write EDC17c84 via OBD.

Pcmtuner Edc17c84 1


Remove ecu and read/write again on bench module 71.

If car not start by module 71 bench mode, the problem can be the checksum.

After fixing checksums, it works on bench module 71.

Pcmtuner Edc17c84 2

If not working, try unplug T° engine sensor and try if not succes Wait until T°10 and retry.