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cabmandone cabmandone is offline
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Join Date: Jul 2013
Location: Delphos OH
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Quote:
Originally Posted by svandamme View Post
I'm not saying Throttle controls the AFM.. it controls the airflow

AFM simply detects that airflow.. in a way the AFM is a result of the throttle+temp+pressure. and Technically the throttle does control the result of that AFM, but it's indirect.

If you have no 02/lambda, then you have no closed loop
so whatever your engine does, is preprogrammed based on the inputs.

AFM
TPS
RPM
Knock
other

You said "my engine doesn't know it has extra O2 iun the ethanol, so it doesn't adjust the airflow"

I don't see how your statement can be true, eg that your engine mgmt somehow controls the airflow... That would be unique and groundbreaking.
I follow what you're saying and I miswrote my first comment. The throttle butterfly controls air flow. I should have said it doesn't adjust the mixture rather than the airflow.
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Old 03-10-2022, 03:35 AM
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