Ethanol/Flex Fuel/E85/E54/E10 users, feedbacks with 1.5.1?

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tryingbe
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Ethanol/Flex Fuel/E85/E54/E10 users, feedbacks with 1.5.1?

Post by tryingbe »

With prior firmwares, there was an issue with the reading of ethanol percentage, it will spike and drop for not apparent reason. This can be dangerous to someone's engine when MS add timing/subtract fuel where it shouldn't be using auto e85 correction.

The new smoothing is in firmware 1.5.1, would someone with an ethanol sensor in their car please datalog and upload their MSL so we can get some feedbacks to see if the reading of ethanol percentage has stabilized?


Thanks.
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Dennis_Zx7r
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Re: Ethanol/Flex Fuel/E85/E54/E10 users, feedbacks with 1.5.

Post by Dennis_Zx7r »

Haven't noticed anything like this so far on Ms3. Am using it for 2 months with a GM style sensor. Currently on 1.5b6, haven't updated to 1.5.1 yet. Eth% varies by +-.25% max usually.
Only issue I have is that it indicates about 2% too much ethanol, but I think this is most likely down to sensor calibration.
Example log with E10 attached.
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jsmcortina
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Re: Ethanol/Flex Fuel/E85/E54/E10 users, feedbacks with 1.5.

Post by jsmcortina »

Dennis_Zx7r wrote:Haven't noticed anything like this so far on Ms3. Am using it for 2 months with a GM style sensor. Currently on 1.5b6,
The new smoothing first appeared in pre-1.5.1 beta 5.

James
I can repair or upgrade Megasquirts in UK. http://www.jamesmurrayengineering.co.uk

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ashford
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Re: Ethanol/Flex Fuel/E85/E54/E10 users, feedbacks with 1.5.

Post by ashford »

the car i set up on ethanol hasn't returned yet for a retune, with winter approaching i may not see it till spring.
Dennis_Zx7r
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Re: Ethanol/Flex Fuel/E85/E54/E10 users, feedbacks with 1.5.

Post by Dennis_Zx7r »

jsmcortina wrote:
Dennis_Zx7r wrote:Haven't noticed anything like this so far on Ms3. Am using it for 2 months with a GM style sensor. Currently on 1.5b6,
The new smoothing first appeared in pre-1.5.1 beta 5.
Sorry, forgot something there. It's 1.5.1 b6, so it should have the new smoothing.
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VLC-05L
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Re: Ethanol/Flex Fuel/E85/E54/E10 users, feedbacks with 1.5.

Post by VLC-05L »

This is something that I have been complaining about for a long time.

I have an MS2, just wondering if there has been adjustment to the MS2 code to account for this?
CB70 12V 3cyl 993cc Daihatsu | MS2X Sequential Fuel and Spark | Flex Fuel Launch Control | Raspberry Pi Dash
jsmcortina
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Re: Ethanol/Flex Fuel/E85/E54/E10 users, feedbacks with 1.5.

Post by jsmcortina »

Still waiting for any feedback on MS3.

James
I can repair or upgrade Megasquirts in UK. http://www.jamesmurrayengineering.co.uk

My Success story: http://www.msextra.com/forums/viewtopic ... 04&t=34277
MSEXTRA documentation at: http://www.msextra.com/doc/index.html
New users, please read the "Forum Help Page".
VLC-05L
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Re: Ethanol/Flex Fuel/E85/E54/E10 users, feedbacks with 1.5.

Post by VLC-05L »

jsmcortina wrote:Still waiting for any feedback on MS3.

James
OK great.
CB70 12V 3cyl 993cc Daihatsu | MS2X Sequential Fuel and Spark | Flex Fuel Launch Control | Raspberry Pi Dash
chips60bug
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Re: Ethanol/Flex Fuel/E85/E54/E10 users, feedbacks with 1.5.

Post by chips60bug »

I've had really clean ethanol% signal for a while now, not sure i can even blame it on the smoothing added in the new firmware. I've seen the opposite too, forcing me to not run with the sensor active. But this last year the sensor and firmware worked flawlessly. I'll upload logs when I get to my computer. I switched to gas a couple times when I got too low on fuel to make it to the e85 station. The computer compensated perfectly and everything worked as it should. I'm extremely pleased with how seamless it has become.
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