MS3Pro Intermittent Shutdown

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MS3Pro Intermittent Shutdown

Postby kenjfox » Mon Dec 11, 2017 6:20 pm

MS3Pro on Miata 1.8 VVT engine. The ECU appears to periodically shuts down, often after going into boost, but has also stopped after idling. There is no indication in the logs of a sensor or configuration problem. However, a recent log showed an offline/online/reset event.
Offline Event.png
From 2017-12-09_14.33.42.msl
Offline Event.png (33.66 KiB) Viewed 80 times
EDIT: Now learned this is a MegaLog Viewer display option. We've verified good grounds, and replaced battery just to rule things out. Any advice on further troubleshooting would be greatly appreciated. The ecu worked fine for months, by the way.
Catfish Tune.msq
(217.33 KiB) Downloaded 9 times
Logs showing sudden shutdown
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Re: MS3Pro Intermittent Shutdown

Postby Matt Cramer » Wed Dec 20, 2017 9:15 am

If this is an MS3Pro PNP, EVO, or Ultimate, check if the power lights are still on when it shuts down.

If it's a Gen 1 MS3Pro, you'll need to check for voltage on VREF instead.

This will give more clues about what's gone wrong.
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