Fuel System - Overview
Overview
The fuel system:
- is a 2-speed Mechanical Returnless Fuel System (MRFS) with sequential MFI Multi- Port Fuel Injection (MFI).
- uses a single container fuel tank.
- has a fuel level sensor assembly.
- has a Fuel Pump that operates on low speed (11-12 volts) depending on load, that supplies fuel under pressure to the fuel rails.
- has a lifetime fuel filter (serviced as part of the Fuel Pump).
- has an Easy Fuel™ (capless) fuel tank filler pipe assembly, which cannot be modified in any way and is serviced only by the installation of a new fuel tank filler pipe assembly.
- has a supplemental refueling adapter located in the glove box.
- has a FPDM located on the driver's side lower "C" pillar area.
- has fuel tubes (liquid and vapor) along with brake tubes mounted on the underside of the vehicle in a bundle.
- uses separately controlled fuel injectors for each cylinder. The fuel injectors are mounted directly into the head.
- fuel injectors are supplied with pressurized fuel from the high pressure, in tank Fuel Pump to the fuel rail.
- has a serviceable fuel level sender mounted on the Fuel Pump Module
Fuel Pump Shut-off Feature
NOTE:
Refer to the Description and Operation, Intelligent Access with Push Button Start in Perimeter Anti-Theft Alarm System
to review the procedures for achieving the various ignition states (ignition OFF, ignition in ACCESSORY, ignition ON and ignition START) on vehicles with this feature.
In the event of a moderate to severe collision, the vehicle is equipped with a Fuel Pump and Sender Shut-off Feature that is initiated by the event notification signal.
The event notification signal is a signal provided by the RCM to the FPDM. Signal communication between the RCM and the FPDM allows the PCM to shut-off the Fuel Pump.
Should the vehicle shut off after a collision due to this feature, the vehicle may be restarted by first turning the ignition to the OFF position and then turn the ignition to the ON position. In some instances the vehicle may not start the first time and may take one additional ignition cycle.