update checksum during emulation

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Posts: 2
Joined: Sat Aug 08, 2015 6:27 am

update checksum during emulation

Post by sciroccoboi16v » Sun Aug 09, 2015 12:47 pm

Havent figured out a way to have tunerpro update checksum during emulation. This causes my ecu to limp and ignore changes when I try to emulate, I can't figure out how to disable checksum routines in ecu (I'm so new at this lol) so I have to change, save, ignition off, upload, restart, every time!

Can checksum correction be enabled for emulation changes as well, or no?

Posts: 24
Joined: Wed Mar 06, 2013 12:00 pm

Post by Acki » Mon Feb 26, 2018 11:23 am

It's 3 years old but TunerPro shows yellow message "Checksum updated" everytime you save something.

Depending on the ECM you should look for the Checksum routine or at least for the DTC setting. When your DTC is 65535 (FF FFh) then you could look for internal DTC 1. (Bosch Motronic is working in this way)

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