The fuel supply is stored in the fuel tank. An electric fuel pump, located in the fuel tank with the gauge sending unit, pumps fuel through an in-line fuel filter to the fuel rail assembly. The pump provides fuel at a pressure more than is needed by the injectors. The pressure regulator, part of the fuel rail assembly, keeps fuel available to the injectors at a controlled pressure. Unused fuel is returned to the fuel tank by a separate line.

A faulty powertrain control module (PCM) will be determined in the diagnostic tables. Before replacing the PCM, a re-programming procedure should not be attempted unless instructed. If the re-programming is unsuccessful a DTC P0602 will set.