INJECTION - IGNITION
9
Fuel injectors
The injectors (1) deliver the correct quantity of fuel required for optimal engine operation.
The ECU controls injector opening by feeding current to the coil of an electromagnet which creates
a magnetic field to attract the armature, thereby generating fuel spray. If we take the physical
characteristics of the fuel to be constant (viscosity, density), as well as the injector delivery and
pressure head (controlled by the fuel pressure regulator), the amount of fuel injected depends on
the duration for which the injector is open.
This time is determined by the ECU in accordance with the engine operating conditions.
In this way correct fuel delivery in ensured.
Do not leave the engine stopped for a long time with the fuel circuit full.
The fuel could clog the injectors and render them inoperable.
Periodically, after lengthy periods without running the engine, we recommend adding a special
additive to the fuel in the tank to help clean critical sections of the fuel circuit.
Sub 9-6
To Next Page
Loading...
