General
Fuel Supply Component Description:
The fuel supply is stored in the fuel tank. An electric fuel pump pressurizes the fuel through an in-line fuel filter through the fuel lines to the fuel rail. The electric fuel pump is suspended from the top of the fuel tank. The fuel pump is designed to provide fuel at a pressure above the regulated pressure needed by the fuel injectors. A pressure regulator keeps the fuel available to the fuel injectors at the regulated pressure The unused fuel is returned to the fuel tank by a separate hose and pipe.
The vehicle powertrain is designed to use only unleaded fuel. Unleaded fuel must be used for proper emission control system operation. Using unleaded fuel will also decrease spark plug fouling and extend engine oil life. Leaded fuel can damage the emission control system, and its use can result in the loss of emission warranty coverage.
This vehicle is also equipped with an Evaporative Emission ([1][2]EVAP) Control System that minimizes the release of fuel vapors to the atmosphere. For more information on the EVAP control system, refer to EVAP Control System Operation Description.