OBD-II Generic Error Code P0447: How to Fix It

Q: Can I drive my car with a P0447 code?

Yes, typically the vehicle will run fine, but you may notice a slight fuel smell. It will likely cause a failed emissions test, so it's best to repair it soon.

Q: What causes code P0447?

Common causes include a faulty vent control solenoid, damaged wiring or connector, corrosion, or in rare cases a failed PCM.

Q: How much does it cost to fix P0447?

DIY repair costs $20-$50 for a new vent solenoid. Professional diagnostic and repair can range from $100 to $300 depending on labor rates.

Q: Where is the EVAP vent solenoid located?

It's usually mounted near the charcoal canister, which is often located under the vehicle near the fuel tank or in the engine compartment.

Q: Will a loose gas cap cause P0447?

No, a loose gas cap typically triggers a large leak code (P0455) or a small leak code (P0456), not an open circuit code like P0447.

Abstract

Error code P0447 indicates that the Powertrain Control Module (PCM) has detected an open circuit in the EVAP vent control solenoid or its wiring. This means the vent valve is not functioning properly, which can cause the EVAP system to fail a leak test and potentially trigger the check engine light. While the vehicle may still be driveable, it can lead to increased emissions and failed smog checks.