P120F – Fuel Pressure Regulator Excessive Pressure Variation

P120F Possible Symptoms

Engine Light ON (or Service Engine Soon Warning Light)

P120F Possible Causes

Faulty Fuel Pressure Sensor Circuit ‘A’,Fuel Pressure Sensor Circuit ‘A’ harness is open or shorted,Fuel Pressure Sensor Circuit ‘A’ circuit poor electrical connection

P120F Description

The Powertrain Control Module (PCM) monitors the Fuel Pressure Sensor Circuit ‘A’. The PCM sets the OBDII code when the Fuel Pressure Sensor Circuit ‘A’ is not to factory specifications.