AutoCodesNissan – P0447 2008 Nissan Sentra

P0447 2008 Nissan Sentra Code - Evaporative Emission Control System Vent Control Circuit Open

Quick Answer

The Evaporative Emission System (EVAP) canister vent control valve is located on the EVAP canister and is used to seal the canister vent. Common causes include Faulty Canister Vent Control Valve, Canister Vent Control Valve harness is open or shorted, Canister Vent Control Valve electrical circuit poor connection. Severity is Low - monitor the vehicle and repair when practical. The vehicle can usually be driven if no severe symptoms are present, but symptoms should be checked before extended driving.

What it means
P0447 2008 Nissan Sentra indicates Evaporative Emission Control System Vent Control Circuit Open.
Common causes
Common causes include Faulty Canister Vent Control Valve, Canister Vent Control Valve harness is open or shorted, Canister Vent Control Valve electrical circuit poor connection.
Severity
Low - monitor the vehicle and repair when practical.
Can I drive?
The vehicle can usually be driven if no severe symptoms are present, but symptoms should be checked before extended driving.
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Code Popularity 5,107
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Jun 14, 2020
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Code P0447 2008 Nissan Sentra Description

The Evaporative Emission System (EVAP) canister vent control valve is located on the EVAP canister and is used to seal the canister vent. This solenoid (the EVAP canister vent control valve) responds to signals from the Engine Control Module (ECM). When the ECM sends an ON signal, the coil in the solenoid valve is energized.
A plunger will then move to seal the canister vent. The ability to seal the vent is necessary for the on board diagnosis of other evaporative emission control system components.This solenoid valve is used only for diagnosis, and usually remains opened. When the vent is closed, under normal purge conditions, the evaporative emission control system is depressurized and allows EVAP Control System (Small Leak) diagnosis.
OBDII Code P0447 2008 Nissan Sentra - Evaporative Emission Control System Vent Control Circuit Open - AutoCodes.com
P0447 2008 Nissan Sentra Code - Evaporative Emission Control System Vent Control Circuit Open

What are the Possible Causes of the DTC P0447 2008 Nissan Sentra?

  • Faulty Canister Vent Control Valve
  • Canister Vent Control Valve harness is open or shorted
  • Canister Vent Control Valve electrical circuit poor connection

How to Fix the DTC P0447 2008 Nissan Sentra?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0447 2008 Nissan Sentra code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

Need more information about the P0447 2008 Nissan Sentra code?

Need more information on how to fix the P0447 2008 Nissan Sentra code? Get Access to Factory Service Manuals

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P0447 2008 Nissan Sentra Code

What does OBDII code P0447 mean for a 2008 Nissan Sentra?

OBDII code P0447 indicates that there is an open circuit in the evaporative emission control system vent control circuit, which affects the proper functioning of the EVAP system.

What are common symptoms of the P0447 code?

Common symptoms include the check engine light being illuminated, possible fuel odor, and in some cases, reduced fuel efficiency or difficulty filling the gas tank.

What are the potential causes of the P0447 code?

Potential causes include a faulty vent control valve, damaged wiring or connectors in the vent control circuit, a blown fuse, or issues within the engine control module (ECM).

How can I diagnose the P0447 code?

To diagnose the P0447 code, visually inspect the vent control valve, wiring, and connectors for damage. Use a multimeter to check for continuity in the circuit and test the vent control valve for proper operation.

What repairs can fix the P0447 code?

Repairs may include replacing a faulty vent control valve, repairing damaged wiring or connectors, replacing a blown fuse, or reprogramming or replacing the ECM if it’s determined to be faulty.

Is it safe to drive with the P0447 code?

While it may be safe to drive, it’s not recommended to ignore the check engine light. Delaying repairs can lead to more severe issues and increased emissions.

Can I reset the check engine light after fixing the P0447 code?

Yes, once the repairs are made, you can reset the check engine light using an OBDII scanner or by disconnecting the battery for a short period. However, the code may reappear if the underlying issue is not resolved.

Will the P0447 code affect my vehicle's performance?

While the vehicle's performance may not be severely impacted, you could experience reduced fuel efficiency and potential issues with emissions, which can lead to failing an emissions test.

How much does it typically cost to repair the P0447 code?

Repair costs can vary widely based on the cause of the code, but it can range from $100 to $500, depending on whether you need to replace components or repair wiring.

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