2004 6.0 NV4500 Tahoe

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iamdub

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Dantheman1540

Dantheman1540

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Ok @randeez why is my air-fuel ratio commanded showing 14.17 not 14.7? I can not for the life of me remember how to change that but I also have no idea why it would ever have been put as something other than 14.7.
 

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randeez

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Ok @randeez why is my air-fuel ratio commanded showing 14.17 not 14.7? I can not for the life of me remember how to change that but I also have no idea why it would ever have been put as something other than 14.7.
engine>fuel>general> stoich afr

thats what the stoich should be on E10(pump gas), does your truck have a flex fuel sensor?
 

pwtr02ss

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Ok @randeez why is my air-fuel ratio commanded showing 14.17 not 14.7? I can not for the life of me remember how to change that but I also have no idea why it would ever have been put as something other than 14.7.
I think I remember @randeez talking about some math formula to get that number correct along time ago. I believe you changed that when you were initially having stalling issues.
 
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Dantheman1540

Dantheman1540

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engine>fuel>general> stoich afr

thats what the stoich should be on E10(pump gas), does your truck have a flex fuel sensor?
No FF, thank you I remembered you mentioning this and I couldn't find that post.
I think I remember @randeez talking about some math formula to get that number correct along time ago. I believe you changed that when you were initially having stalling issues.
I remember that now, I guess I should have just looked to see if it was reading stoich even tho its showing 14.17 commanded.
 

pwtr02ss

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I remember that now, I guess I should have just looked to see if it was reading stoich even tho its showing 14.17 commanded.
I just remember some long ass number and thinking, I'll never figure this shit out. I also don't know what stoich means so thats not helping lol.
 

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