Fuel Injector
There are 6 fuel injectors located between the cylinder head and the fuel rail. The fuel injectors are sealed in the cylinder head with o-ring seals and held in position by the fuel rail.
The PCM supplies the power supply and the ground connection for each fuel injector. Each fuel injector contains a solenoid operated needle valve, which opens when the solenoid winding is energized. While the needle valve is open, fuel is sprayed into the combustion chamber. The amount of fuel injected and the timing of the injection period is controlled by the PCM using data from other sensors.
The fuel injectors each have a 2-pin connector which is connected to the PCM .
The 2-pin connector provides the following connections:
- An electrical 12V supply from the PCM .
- A ground connection controlled by the PCM .
If a fuel injector fails, the engine suffers from unstable idle speed, poor Noise, Vibration and Harshness (NVH) and poor emissions performance. The MIL in the IPC also becomes illuminated.