Digital Fuel Injection: Description

The Digital Electronic Fuel Injection System (DEFI) supplies fuel to the engine through 2 electrically actuated injector valves located in the throttle body which is mounted on top of the intake manifold. The amount of fuel metered through the injectors is controlled by the Electronic Control Module (ECM).

The ECM is a digital electronic computer which receives and computes signals from various sensors mounted on the engine. These signals give the ECM engine demand and engine efficiency information, so it can respond by signaling the injectors to allow the proper amount of fuel into the engine.