So instead of ecu getting input from maf or map, it will receive it from the unit.
So the e-manage will refer to the map the and give the signal to the ecu. When e-manage is installed the output of the MAP or MAF will be supplied to the E-manage.In the E-manage, user can set their own airflow adjustment mapping. The primary function of a piggyback controller is to adjust the fuel to be injected.ĮCU will inject the fuel according to the Manifold Absolute Pressure ( MAP) or Mass Airflow Sensor ( MAF). It is not an ecu but it is design to manipulate the ecu input to vary the amount of fuel injected,ignition timing and few other functions. The ecu variable input such as rpm,manifold pressure or the mass air flow.īasically the rpm and the amount of air available will be used by the ecu to calculate the correct amount of fuel to be injected. Every fuel injection car runs with an ecu to control every operation of the engine.This include controlling the duty cyle of the injector(how long the injector is on, means amount of fuel injected), ignition timing, camshaft profile, and few other.
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