P120F - Fuel Pressure Regulator Excessive Variation
WARNING: This page is about a different car, the 2008 Ford Pickup, 2008 Ford F550 Super Duty, 2008 Ford F450 Super Duty, and 2008 Ford Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.
P120F - FUEL PRESSURE REGULATOR EXCESSIVE VARIATION
| Description: | The powertrain control module (PCM) adjusts the fuel rail pressure by controlling the fuel pressure control valve. This DTC sets when the actual fuel rail pressure varies too much from the desired fuel rail pressure for the calibrated fuel mass value. | |||
| Possible Causes: |
|
|||
| Diagnostic Aids: | This DTC may have been set as a result of the oscillating FRP sensor signal. Repair any FRP circuit related DTCs first. | |||
| Application | Key On Engine Off | Key On Engine Running | Continuous Memory | |
| All | refer to PINPOINT TEST M . | |||