7.4 Startup / Idle 7 ADDITIONAL ITEMS: BEYOND BASIC FUEL AND IGNITION CONTROL
If you are using closed loop idle with the initial value table selected, the MS3Pro uses this to look up the initial
duty cycle when closed loop idle control engages. The X-axis specifies what target RPM, and the Y-axis is either
coolant or air temperature, as determined by the closed loop settings screen.
7.4.10 PWM Idle voltage compensation
This screen is available when using PWM warmup or closed loop idle. PWM valves, particularly the two wire
sort, change how far they open when the battery voltage changes. This number is added to (or subtracted from,
in the case of negative numbers) the duty cycle at the specified battery voltage. Three wire PWM valves are less
likely to need this, and often need this table to be zeroed out.
AMP EFI MS3Pro manual version 1.202, firmware 1.5.0, 4/21/2017 Page 189
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