ECU Resetting Itself While Driving

KTuner
Site Admin
Posts: 3744
Joined: Mon Jul 22, 2013 8:13 pm

Re: ECU Resetting Itself While Driving

Post by KTuner »

We have not found any reason for a reset.

An ECU reset can't break an engine.
JDD604
Posts: 3
Joined: Sat Jan 14, 2023 9:02 pm

Re: ECU Resetting Itself While Driving

Post by JDD604 »

I too have noticed this issue with multiple ecu's and codebases. It feels like the ECU resets for a moment, then all is well. It's happened at idle, part throttle and full throttle. No rhyme or reason to it. Finally I caught the issue on the dyno one day. The AIGN jumps to 60degree for an instant for no reason, then returns to normal. This results in what feels like a reset. In the case of the attached datalog, it happened at full throttle on a dyno run, and the engine bucked for just a moment along with the relay click under the dash.

Image

Datalog with issue at ~9s mark (Can't attach files for some reason):
https://onedrive.live.com/embed?cid=2FC ... BR7h-7b8_Q

This is more of an FYI post as it is not really reproducible. I have visually seen it when using realtime on PRB and without realtime enabled in codebases without this feature available.
KTuner
Site Admin
Posts: 3744
Joined: Mon Jul 22, 2013 8:13 pm

Re: ECU Resetting Itself While Driving

Post by KTuner »

If you're getting a reset unexpectedly I would highly recommend not leaving real-time mode on, as it takes a second to upload that data from the PC to the ECU, hence the values not matching the table.
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