Injectors — general information

The fuel injector, centrally located in the CFI assembly, is a solenoid valve that delivers a specific dose of fuel for the appropriate engine load condition. This dose of fuel in the form of finely atomized particles is sent directly to the intake manifold.

For the operation of the injector, the EEC-IV device provides two different signals: one signal with a high amperage value - in order to lift the needle of the jet from its seat and the other signal with a low amperage value (through unloading resistance) - to keep the valve open.

At idle, the injector is activated every second intake stroke, while the vehicle is moving, with each intake stroke. In this case, the injector is under constant fuel pressure, which is provided by the fuel pump and maintained by the pressure regulator.