AEM Infinity Supported Applications - Mazda 1986-2002 16B & 20B Rotary - Manual (Page 13)

Infinity Supported Application 13
© 2014 AEM Performance Electronics
During the Secondary Injection setup, the Secondary/3rd Stage injector flowrate was selection in the
Injector Flow Setup. The wizard sets the "Inj3rdFlowRate [cc/min] table to the same values as the
InjSecFlowRate [cc/min] table. It is assumed that the Secondary and 3rd Stage injectors will have the
same flow rate.
*If injectors will be wired in pairs, i.e. 2 injectors per Infinity injector output, the flowrate table will need to
be doubled to account for the change in actual fuel delivery.
In the Infinity Setup Wizard, navigate to the tab 3rd Stage Injectors. Below are the settings that are used
to activate the 3rd Stage injectors. For MAP, choose between kPa and psig. Then set the On Above an
Off Below for MAP and RPM. These values will affect the StagedSplit [%] used in the Secondary
Injection setup. The 3rd Stage injectors are represented as Secondary injectors in the StagedSplit [%]
table, therefore the calculations used to determine duty cycle need to account for the increased
Secondary flow rate when the 3rd Stage injectors are activated. Use the example of 2 Secondary
injectors: Injector Dynamic 1000, and 2 3rd Stage injectors: Injector Dynamic 2000. When the MAP goes
above 0 psig and the engine speed is above 1350 RPM, the Secondary injector flow rate will increase
from 2,000 cc/min to 6,000 cc/min. The injector duty cycle calculation for the StagedSplit [%] table
needs to account for the new flowrate in the areas where the 3rd Stage injectors will be active.