Help with some E85 settings

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Help with some E85 settings

Postby ffr3247r » Fri Nov 03, 2017 8:53 am

I’m having a difficult time figuring out what I need to do to get this set up correctly.

I have been running a AEM wideband over can and it took a crap so I went with a Ballenger unit set up on lambda which is what I’ve been told I need to be reading in.

Prior I had the req fuel set at 14.7 and the incorporate afr at 14.7 and the wideband properties set to afr. I thought all was ok but was told this isn’t correct.

I got the new wideband and swapped the req fuel and incorporate afr to the 9.8 stioch for E85 and immediately my be table was super lean. At this time I had not changed the project property to read in lambda. I was using gas afr.

Last night I swapped to lambda in the project properties and no matter what gauge I swap to I never get the lambda reading that’s reflected in he Ballenger controller.

Where am I going wrong
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Re: Help with some E85 settings

Postby LT401Vette » Fri Nov 03, 2017 3:03 pm

Sounds like you made multiple changes at once?

What are you focused on now changing Widebands or changing fuels?

The Ballenger set up works fine, that is what I am using in my car with the ntk sensor.
Phil Tobin
EFI Analytics, helping to simplify EFI
Next Generation tuning software.
Supporting all MegaSquirt versions and firmwares.
http://www.TunerStudio.com
http://www.efiAnalytics.com/MegaLogViewer/
Support the firmware running your engine:
http://www.msextra.com/doc/donations.html
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Re: Help with some E85 settings

Postby ffr3247r » Fri Nov 03, 2017 3:43 pm

Sorry some things get lost in forums while typing.

I’m running E85 and have been the entire time just on the gas AFR scale.

I never changed my req fuel or the incorporate afr number to 9.8 it’s always been at 14.7. I’ve been told numberous times that I should be reading in lambda and that these fields need to be 9.8.

I installed the Ballenger unit and picked the NGK sensor from the drop down on the project properties. The linear values were in the gas scale. I later realized that these should be in the lambda scale because that’s how my controller is set up.

I used the numbers listed in the manual that came with the Ballenger unit. I switched my req fuel and incorporate afr numbers to 9.8.

I wasn’t able to get a lambda gauge to read what the Ballenger unit was displaying. Not sure where I went wrong
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Re: Help with some E85 settings

Postby ffr3247r » Fri Nov 03, 2017 3:47 pm

I may mess with it some this weekend if I don’t get to frustrated.
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Re: Help with some E85 settings

Postby ffr3247r » Mon Nov 06, 2017 5:39 pm

Never could get this working.

Phil you say you run this same Ballenger wideband?

In the properties did you use .622 for zero vilts and 1.098 for the 5 volt?
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Re: Help with some E85 settings

Postby LT401Vette » Tue Nov 07, 2017 8:22 am

ffr3247r wrote:Never could get this working.

Phil you say you run this same Ballenger wideband?

In the properties did you use .622 for zero vilts and 1.098 for the 5 volt?


No, you need to use gasoline AFR for calibrating, not lambda.
Phil Tobin
EFI Analytics, helping to simplify EFI
Next Generation tuning software.
Supporting all MegaSquirt versions and firmwares.
http://www.TunerStudio.com
http://www.efiAnalytics.com/MegaLogViewer/
Support the firmware running your engine:
http://www.msextra.com/doc/donations.html
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