Fuel System Monitor
WARNING: This page is about a different car, the 2012 Ford Pickup, 2012 Ford F550 Super Duty, 2012 Ford F450 Super Duty, and 2012 Ford Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.
The fuel system monitor is an on-board strategy designed to monitor and detect concerns within the fuel control system and its components. The fuel control system uses fuel trim tables to compensate for the variability that occurs in fuel system components due to normal wear and aging. During certain driving conditions the PCM cycles the fuel pump on and off for testing purposes and is considered normal operation. The following functional checks and component monitors are executed during the fuel system monitor:
- fuel rail pressure (FRP) sensor circuit check
- FRP operation monitor
- FRP functional check
- fuel volume control valve operation monitor
- fuel pressure control valve operation monitor
- fuel injector driver operation monitor
- fuel injector circuit check