cylair WOT Multiplier and Max Multipliers

[zq8bob]

So for grins, we used a friend of mines SCT x2 to flash my car, and then downloaded it to compare it the stock file, just to see what kinds of changes it made. Nothing was super surprising, but I did find a couple of things that I just don't understand and was hoping for some guidance on here.


The first change that I couldn't figure out why are the cylair WOT Multiplier and Cylair Max Multiplier were both changed. Factory on these are 1.10 and 90 respectively. The reflash sets them to 1.9 and 1.1 respectively. Truth be told, other than the fact that these are numbers that modify the calculated air mass, I'm not sure what they are, much less why they are changed...

[Chris@HPTuners]

they define an upper limit for the calculated cylinder airmass, by making it larger you effectively remove any upper limit and prevent the ECM from going into any failure modes due to exceeding it.

[zq8bob]

Ahhh... very cool. Thanks Chris.

Cylair WOT Multiplier Is very obviously for WOT, and I am going to assume ONLY for WOT. I am guessing that the Cylair Max Multiplier is going to be the one used for all Non-WOT states then? Would these be correct assumptions?

[Justin@VMP]

In some PCMs it does not effect fueling, but in the ones where it does count, you can still get clipped with enough airflow.