AEM 30-71XX Infinity Stand-Alone Programmable Engine Mangement System Full Manual - Manual (Page 147)

Tuning Guide 141
© 2014 AEM Performance Electronics
Ignition Trims
IgnTrimAirTempMap
Units: MAP vs AirTemp vs Ignition Timing
Description: This table allows for an ignition timing compensation based on engine load and
intake air temperature.
IgnTrimCoolantTempMap
Units: MAP vs CoolantTemp vs Ignition Timing
Description: This table allows for an ignition timing compensation based on engine load and
coolant temperature. On a catalyst vehicle, retarding the ignition timing can be used to light a
cool catalytic converter off sooner for improved emissions.
IgnTrimAfterStart
Units: Ignition Timing vs After Start Time
Description: This table allows for an ignition timing trim based on the after start condition. On a
catalyst vehicle, retarding the ignition timing can be used to light a cool catalytic converter off
sooner for improved emissions.