Fuel System - Overview

WARNING: This page is about a different variant/trim than selected.

Overview

NOTE: If directed during assembly of fuel system components, lubricate any seal(s) only with specified material. Failure to follow this instruction may result in seal failure and fuel leakage.

NOTE: Repairs of the fuel system are to be achieved only by replacement of the failed component(s). Repair of a fuel system component should not be attempted.

The fuel system:

uses a single container (L-shaped) fuel tank.
has a Fuel Pump that operates on low speed (9-10 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 luggage compartment.
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 - FUSION (HYBRID/ENERGI) 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.

The event notification feature provides other vehicle subsystems with information pertaining to SRS deployment or fuel cutoff status. When an impact occurs which exceeds a pre-determined threshold, the RCM sends a signal on a dedicated circuit to the BCM.

When the BCM receives a crash signal input from the RCM, the BCM initiates fuel cutoff by removing the ground signal from the Fuel Pump Relay and also sends a signal to the PCM on a dedicated circuit, disabling the fuel system.

After the fuel system is disabled, the vehicle can be re-started after carrying out the following steps:

Turn the ignition OFF.
Turn the ignition to START (on vehicles with push button start, press the start/stop button while the brake pedal is pressed).
Turn the ignition OFF.
Turn the ignition ON.