Fuel Injectors

Description
For the 2002MY air assist injectors were used, this type of fuel injector consists of a small solenoid, which is used to inject air and fuel so that the fuel is atomised. Later model years use conventional injectors. The injector is activated by the ECM to lift off its base allowing fuel to pass into the intake manifold.

The ECM monitors the output power stages of the injector drivers for electrical faults. A fault is detected if any of the following conditions is satisfied: -
1. Fuel injector driver short circuit to battery positive, i.e. the driver voltage is less than 3 V.
2. Fuel injector driver short circuit to ground, i.e. the driver current is greater than 2.4 A.
3. Fuel injector driver open circuit, i.e. the driver voltage is less than 5 V.