Ford P0451 OBD-II Trouble Code Definition:
P0451 Fuel Tank Pressure Sensor Range/Performance
P0451 Ford OBD-II Trouble CodeDescription:
OBD Trouble Code P0451
Evaporative Emission System Pressure Sensor/Switch Range/Performance
What does the code mean? OBD-ii Code P0451 definition:
The EVAP control system pressure sensor detects pressure in the purge line. The sensor output voltage to the ECM increases as pressure increases. The EVAP control system pressure sensor is not used to control the engine system. It is used only for on board diagnosis.
The EVAP control system pressure sensor detects pressure in the purge line. The sensor output voltage to the ECM increases as pressure increases. The EVAP control system pressure sensor is not used to control the engine system. It is used only for on board diagnosis.
Symptoms Sumptoms of OBD code P0451
– Engine Light ON (or Service Engine Soon Warning Light)
– Engine Light ON (or Service Engine Soon Warning Light)
Causes Causes of the OBD-II code P0451
– The EVAP control system pressure sensor circuit is open or shorted – Rubber hose to EVAP control system pressure is clogged, vent, kinked, disconnected or improper connection. – EVAP control system pressure sensor may be faulty – EVAP The Error code is generally activated on detection of the following conditions: – An improper voltage signal from EVAP control system pressure sensor is sent to ECM.
– The EVAP control system pressure sensor circuit is open or shorted – Rubber hose to EVAP control system pressure is clogged, vent, kinked, disconnected or improper connection. – EVAP control system pressure sensor may be faulty – EVAP The Error code is generally activated on detection of the following conditions: – An improper voltage signal from EVAP control system pressure sensor is sent to ECM.
Solutions