7.7 Table Choices 7 ADDITIONAL ITEMS: BEYOND BASIC FUEL AND IGNITION CONTROL
Blend curve (2) is used to define the blend between Spk1 and Spk2 which may use different algorithms. Here
it is used to blend between the spark tables based on flex fuel percentage. It is very important to tune each table
individually - trying to retune with a partial blend is likely to result in confusion or failure.
7.7.0.5 AFR blending and switching types There are two AFR tables, AFR1 and AFR2.
The MS3Pro has three options for choosing these.
Method Diagram
Single table.Target AFR is determined from AFR1.
This is the most common setup.
Switched tables.Target AFR is determined from
AFR1 or AFR2.
A physical switch input determines which table is
used.
Blended tables.Target AFR is determined as a
blend between AFR1 and AFR2 using Blend Curve
(5) .
The target AFR is then be used for closed loop EGO or for Incorporate AFR. Note that even in "Dual Table"
mode, only a single AFR target number is in use at one time. Both channels will target the same number if closed
AMP EFI MS3Pro manual version 1.202, firmware 1.5.0, 4/21/2017 Page 223
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