Fuel Scalar and it's limits (Ethanol)?

carabuser

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Oct 2, 2019
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I'm ignorant on the details of the MHD logic change, but wouldn't scaling load down on the second half of the 3 cell scaling also scale down the calculated charge air mass entering the cylinder to be lower than actual, creating the issue car abuser mentioned? Not challenging, just questioning since I don't know, and would genuinely like to know.
Correct.

The 3 cell map scaling isn't really a fix for anything, it just lets you fudge the map sensor between certain voltage ranges only as fudging the map sensor across its entire range will cause drive ability issues.

The inverse of whatever scaling is done on the map sensor needs to be applied to the load calculation to compensate for the missing reported boost. I don't think it's enough of a problem to warrant Jake making that change.
 
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