P0447 2008 Nissan Altima Sedan 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 Altima Sedan 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.
Code P0447 2008 Nissan Altima Sedan Description
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.
What are the Possible Causes of the DTC P0447 2008 Nissan Altima Sedan?
- 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 Altima Sedan?
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 Altima Sedan 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.
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Frequently Asked Questions about P0447 2008 Nissan Altima Sedan Code
1. What does the OBDII code P0447 mean for a 2008 Nissan Altima Sedan?
P0447 indicates an "Evaporative Emission Control System Vent Control Circuit Open," meaning there’s an electrical issue with the vent control valve in the EVAP system.
2. What are common symptoms of a P0447 code in a 2008 Nissan Altima?
Symptoms may include the Check Engine Light turning on, possible fuel odors near the vehicle, and failed emissions tests.
3. What causes the P0447 code to appear?
Common causes include a faulty vent control valve, damaged or corroded wiring, a disconnected electrical connector, or a blown fuse.
4. Can I drive my 2008 Nissan Altima with a P0447 code?
Yes, you can drive with this code, but it’s recommended to fix it soon as it may lead to higher emissions, potential fuel smell, and problems passing emissions testing.
5. How do I diagnose the P0447 code on my 2008 Nissan Altima?
Start by inspecting the vent control valve for damage, checking the electrical connections and wiring for corrosion or disconnection, and testing the circuit with a multimeter.
6. How do I fix the P0447 code on a 2008 Nissan Altima?
Repairs may involve replacing the vent control valve, repairing or replacing damaged wiring, cleaning electrical connections, or replacing a blown fuse.
7. Where is the vent control valve located on a 2008 Nissan Altima?
The vent control valve is typically located near the charcoal canister underneath the rear of the vehicle.
8. How much does it cost to repair the P0447 code on a 2008 Nissan Altima?
The cost can vary, but replacing the vent control valve typically ranges from $150 to $300, including parts and labor.
9. Can a loose gas cap cause a P0447 code?
No, a loose gas cap usually triggers codes like P0455 or P0442, not P0447, which is specific to the vent control circuit.
10. Will clearing the P0447 code with a scanner fix the problem?
Clearing the code will turn off the Check Engine Light temporarily, but if the underlying issue isn’t resolved, the code will return.
Discuss the causes and fixes for P0447 2008 Nissan Altima Sedan OBDII Code
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Ok this is the only thread I've found with a clear picture of my problem, I have a 3.5L engine version above picture number 1 canister vent control valve Who is C is off of the vehicle and I don't know where to send it or what it does but from everything I've read so far it's making my car and I ran and I don't know where to send this hose does anybody know what I'm talking about
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That C hose goes to the Drain filter. You can actually leave it disconnected, but if is disconnected from the filter, water or debris can get int the tube.
If it's already disconnected, and its triggering the P0447 code, check if there is debris inside, clean the hose and reconnect to the Vent Control Valve (1) -
I have a po445 code. This indicates leaking. I see no holes and have put fog in the line from the evap inlet in the engine room
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If you have no leaks, then you may have to replace the Canister Vent Control Valve.
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