P1451 FORD EVAP Control System Canister Vent Solenoid Circuit Malfunction

Possible causes
– Loose or missing gas cap
– Faulty gas cap
– Canister Vent Solenoid harness is open or shorted
– Canister Vent Solenoid electrical circuit poor connection
– Faulty Canister Vent Solenoid
When is the obd code mean?
The code indicates that an EVAP system leak has been detected.
Symptoms
– Engine Light ON (or Service Engine Soon Warning Light)
P1451 FORD OBD Code Description

The Engine Control Module (ECM) detected the canister vent solenoid signal moved outside the calibrated parameters at a specific duty cycle.