CAR OBD CODES

P0451 OBD Code Definition:
P0451 Fuel Tank Pressure Sensor Range/Performance
P0451 OBD Code Description:

OBD2 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. Symptoms

Possible sumptoms of P0451
– Engine Light ON (or Service Engine Soon Warning Light) Possible Causes

Possible causes of 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. Possible Solutions

Note: The information on the P0451 error code is purely informative, if you need more useful information, please consult your technician.