P1451 Chevrolet 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
– Faulty gas cap
– Canister Vent Solenoid harness is open or shorted
– Canister Vent Solenoid electrical circuit poor connection
– Faulty Canister Vent Solenoid
Symptoms
– Engine Light ON (or Service Engine Soon Warning Light)
P1451 Chevrolet Mercury Description
The Engine Control Module (ECM) detected the canister vent solenoid signal moved outside the calibrated parameters at a specific duty cycle.