P2451 – Evaporative Emission System Switching Valve Stuck Closed

P2451 Possible Symptoms

Engine Light ON (or Service Engine Soon Warning Light)

P2451 Possible Causes

Faulty Evaporative Emission System Switching Valve,Evaporative Emission System Switching Valve harness is open or shorted,Evaporative Emission System Switching Valve circuit poor electrical connection

P2451 Description

The Engine Control Module monitors the Evaporative Emission System Switching Valve. The OBDII code is set when the Evaporative Emission System Switching Valve is out factory specifications.