Fuel Injector: Description and Operation

The fuel injectors:
- are electrically operated by the Powertrain Control Module (PCM).
- each have an internal solenoid that opens a needle valve to inject fuel into the lower intake manifold.
- atomize the fuel as the fuel is delivered.
- are deposit-resistant. Do not clean the fuel injectors.

CAUTION: Use O-rings that are made of special fuel-resistant material. Use of ordinary O-rings can cause the fuel system to leak. Do not reuse O-rings.