AEM 30-1931 Universal Fuel Ignition Controller 8 Channel - Manual (Page 15)

Page 15
· CTRL-M = Show MAF map screen
· CTRL-O = Show O2 map screen
· CTRL-S = Show Setup screen
· CTRL-U = Value-up
· CTRL-V = Paste from clip board
· CTRL-X = Show value-change pop-up menu
· CTRL-Y = Redo
· CTRL-Z = Undo
Fuel Map, MAP Load (See Figure 25.)
The MAP based “Fuel Map” uses the onboard map sensor for its load input. Fuel
can be added or removed from the engine based on engine speed and manifold
pressure. With a value of 12% in any of the cells, the F/IC will hold the injector open for
12% longer than the factory fuel pulse. With a value of -18% in any of the cells, the F/IC
will hold the injector open for 18% less time than the factory fuel pulse. A value of 0 will
not alter the fuel pulse length from the factory ECU.
The
“Fuel Map” also has a couple unique features that allow for easy setup of a
basic cali bration file. The “Injector size change” and “Create base fuel map” functions
reduce the amount of time required to configure a map when starting from scratch. The
“Injector size change function” is used to rescale the fuel map when changing injector
size. Right click on the
“Fuel Map” and select “Injector size change”. Enter the new and
old injector sizes and click ok. The “Fuel Map” will automatically rescale for the new
injector size. To create a base map, right click on the
“Fuel Map” and select “Create
base fuel map”. Enter the “New injector size,” if changed, the “Old injector size”, the
“Maximum RPM”, and the “Maximum Boost” (must be absolute pressure) and click OK.
(Note: Final tuning is required after using the
“Create base fuel map” function.)
Figure 25. MAP Sensor Based Fuel Map