7.4 Startup / Idle 7 ADDITIONAL ITEMS: BEYOND BASIC FUEL AND IGNITION CONTROL
advance, allowing you to add more timing if the RPM is below your target idle, or pull timing if the RPM goes over
the target number.
7.4.14 Idle VE settings
The idle VE table is similar to the idle advance table, letting you specify a 4 x 4 VE table specifically for idle. This
can avoid tying up multiple rows in the VE table strictly for idle tuning.
• Idle VE on - Setting this to On enables using the idle VE table, while setting this to off uses the regular VE
table at idle.
• PID idle activates - You can either trigger the idle advance settings when the conditions for closed loop idle
are initially met, or after the PID delay causes the ECU to start actively correcting the idle speed. The engine
state setting
• and CLT is above (degrees) - The engine coolant temperature must also be above this value before idle
advance will engage, if using engine states.
• and after delay (sec) - If using engine states, all the other conditions must be met for this amount of time
before idle advance will engage. If not using engine states, it will use the PID delay from the closed loop idle
menu.
These should usually be tuned in the same manner as the settings for engaging the idle advance curve - see
section 7.4.13.
The upper idle VE table is used for running off the main fuel table in place of VE table 1. The lower idle VE
table is normally inactive, and is only used when using dual fuel mode with an alternate AFR table.
AMP EFI MS3Pro manual version 1.202, firmware 1.5.0, 4/21/2017 Page 193
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