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rusefi / hellenNA6_issues

This is repository for public issue tracking of private HellenNA6 board
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Flex Fuel dropout #27

Closed BeerMoneyMotorsports closed 2 years ago

BeerMoneyMotorsports commented 2 years ago

I had some issues with flex % today. I was on a 45 minute drive and it went from 75 to 0 and started running lean. It did this 5 times and every time a complete power cycle fixed it. After stopping for an hour or so, i went back home. It did it once in the first 5 minutes and never again.

I now have logs of the occurrence.
https://rusefi.com/online/view.php?log=779

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Measured the input with the scope.

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There was no change in the signal when the fault occurred. Signal does show intermittent noise at times during operation. Sensor maintains vbatt.

BeerMoneyMotorsports commented 2 years ago

Flex input uses in_sens1 in the hellen input module which ultimately goes to GPIOF-3 on the STM32F4

BeerMoneyMotorsports commented 2 years ago

@andreika-git @mck1117

mck1117 commented 2 years ago

tested with multiple ECUs, or just one?

BeerMoneyMotorsports commented 2 years ago

@mck1117 just the one. I can attempt to try another

mck1117 commented 2 years ago

you can also try older firmware since we've touched some of this stuff recently

BeerMoneyMotorsports commented 2 years ago

I have been running on newer firmware(05/04/22) and driven it a good bit with zero problems. So firmware seems to be responsible.

mck1117 commented 2 years ago

ccccccccccccclosed