AEM 30-1931 Universal Fuel Ignition Controller 8 Channel - Manual (Page 16)

Page 16
Ignition map (See Figure 26.)
The “Ignition Map” is used to Retard Ignition Timing. The load input for the
“Ignition Map” is based on either MAP, MAF, or TPS. Timing will be removed from the
engine based on the selected load input and engine speed. Since timing can only be
removed(retard) from the engine, the
“Ignition Map”only accepts negative numbers.
For example, a value of –4 will retard the timing 4 degrees. The load input for the
“Ignition Map”is selected from the “Setup” window. Go to setup>system and the “Setup”
window will appear. In the
“Ignition” section, select the desired load input from the drop
down menu.
Similar to the
“Fuel Map”, the FIC software will also create a base “Ignition Map”.
Right click on the “Ignition Map” and select “Create base ignition map”. Enter the
“Maximum rpm”, “Maximum boost” (must be absolute pressure), the desired “Timing
retard per unit of
Boost”, and click OK. (Note: As with the “Fuel Map”, final tuning is
required after using the
“Create base ignition map” function.)
Analog A(B) Map (See Figure 27.)
The Analog A(B) map is used to alter the Analog A(B) signal to the factory ECU.
The Analog A(B) map load is based on either MAP, MAF, TPS, or the Analog A(B) input
voltage. The load input is selected from the
“Analog A(B)” section of the “Setup”
window. The Analog A(B) map has three different operating modes, Percent, Offset,
and Voltage. The mode is also selected in the
“Analog A(B)” section of the “Setup”
window.
Figure 26. Ignition Map