2013 f150 5.0 stuck at 80% alcohol

[Bertus76]

Hello,

I have the above truck here and the ethanol sensor reads a steady 80% and the fuel mileage is crap. We don't have any fuel like that around here.

Can I just turn it of in the tune?

Thanks

[TheMechanic]

Hello,

I have the above truck here and the ethanol sensor reads a steady 80% and the fuel mileage is crap. We don't have any fuel like that around here.

Can I just turn it of in the tune?

Thanks

Yes. Check your MAF. Disconnect and see if trims etc. all of the sudden correct. Also check for false air. Air entering after MAF but before the TB.

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Yes. Check your MAF. Disconnect and see if trims etc. all of the sudden correct. Also check for false air. Air entering after MAF but before the TB.

pretty sure trucks only have map sensors

[TheMechanic]

pretty sure trucks only have map sensors

https://www.rockauto.com/en/catalog/...ow+sensor,5128