Ford Fiesta: Fuel System - General Information - 1.6L EcoBoost (132kW/180PS) – Sigma / Fuel System - Overview. Description and Operation

Overview

The fuel system:

• is a variable speed Closed Loop Pressure Control (CLPC) Fuel System with Gasoline Turbocharged Direct Injection (GTDI).
• uses a single-container fuel tank.
• has a high pressure Fuel Pump that supplies high pressure, low volume fuel pressure to the fuel rails.
• has a in tank Fuel Pump (FP) and Sender Unit that supplies fuel under pressure to the fuel rail.
• 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 FP module that operates on 10 or 12 volts depending on load, that supplies fuel under pressure to the fuel rail.
• 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 to the intake manifold and are supplied with pressurized fuel from the high pressure Fuel Pump to the fuel rail.
• has a serviceable fuel level sender mounted on the Fuel Pump Sender Unit.

Fuel Pump Shut-off Feature

NOTE: Refer to the Description and Operation, Intelligent Access with Push Button Start in Section 419-01A 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.