P1451
EVAP Control System Canister Vent Solenoid Circuit Malfunction
P1451 is an OBD-II diagnostic trouble code meaning: EVAP Control System Canister Vent Solenoid Circuit Malfunction. Common causes: open or short circuit in valve circuit, malfunction of the canister ventilation solenoid valve. Estimated repair cost: $17–78.
Symptoms
- Check Engine Light Is On
- Increased fuel consumption
- Difficulty starting the engine
- Unstable engine idling
- Smell of gasoline in the cabin or under the hood
Causes
- Open or short circuit in valve circuit
- Malfunction of the canister ventilation solenoid valve
- Problems with the relay or circuit fuse
- Clogged or faulty adsorber
- Damage to the wiring harness near the valve
How to Fix
- Check valve control circuit fuses and relays
- Check the circuit for open and short circuit
- Check valve coil resistance
- Clean or replace the canister ventilation valve
- Check the EVAP system for leaks
Related codes
Error P1451 by Vehicle Brand
FAQ
What does the P1451 code mean?
P1451 is an OBD-II diagnostic trouble code that indicates: EVAP Control System Canister Vent Solenoid Circuit Malfunction
What causes a P1451 error code?
The most common causes of P1451 include: Open or short circuit in valve circuit; Malfunction of the canister ventilation solenoid valve; Problems with the relay or circuit fuse; Clogged or faulty adsorber.
How do I fix a P1451 diagnostic trouble code?
To fix P1451: Check valve control circuit fuses and relays. Check the circuit for open and short circuit. Check valve coil resistance. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P1451?
Yes, but get it checked soon
How much does it cost to fix P1451?
The estimated repair cost for P1451 is $17–78. Actual cost depends on your vehicle, location, and labor rates.
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