P1446 2005 Nissan Altima Sedan Code - EVAP Canister Vent Control Valve Close
Quick Answer
The EVAP canister vent control valve is located on the EVAP canister and is used to seal the canister vent. Common causes include Faulty EVAP Pressure Sensor, EVAP Pressure Sensor harness is open or shorted, EVAP Pressure Sensor circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- P1446 2005 Nissan Altima Sedan indicates EVAP Canister Vent Control Valve Close.
- Common causes
- Common causes include Faulty EVAP Pressure Sensor, EVAP Pressure Sensor harness is open or shorted, EVAP Pressure Sensor circuit poor electrical connection.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Code P1446 2005 Nissan Altima Sedan Description
This solenoid 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.
What are the Possible Causes of the DTC P1446 2005 Nissan Altima Sedan?
- Faulty EVAP Pressure Sensor
- EVAP Pressure Sensor harness is open or shorted
- EVAP Pressure Sensor circuit poor electrical connection
- Blocked rubber tube to EVAP canister vent control valve
- EVAP Water separator
- EVAP canister is saturated with water
- Faulty EVAP canister vent control valve
How to Fix the DTC P1446 2005 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 P1446 2005 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 P1446 2005 Nissan Altima Sedan Code
1. What does the OBDII code P1446 on a 2005 Nissan Altima Sedan mean?
The code P1446 indicates a problem with the EVAP canister vent control valve close function.
2. What are the common symptoms of a P1446 code in a 2005 Nissan Altima Sedan?
Common symptoms include the check engine light coming on, rough idling, decreased fuel efficiency, and potential difficulties starting the vehicle.
3. What are the possible causes of a P1446 code in a 2005 Nissan Altima Sedan?
Possible causes include a faulty EVAP canister vent control valve, a clogged EVAP canister, damaged hoses, or a malfunctioning EVAP system.
4. How can I diagnose a P1446 code on my 2005 Nissan Altima Sedan?
Diagnosing a P1446 code typically involves checking the EVAP system components for any signs of damage, leaks, or blockages. A professional diagnostic scan tool can help pinpoint the exact issue.
5. Can I still drive my 2005 Nissan Altima Sedan with a P1446 code?
It is not recommended to drive your vehicle with a P1446 code, as it can lead to further damage to the EVAP system and potentially affect the vehicle's performance.
6. How much does it cost to repair a P1446 code on a 2005 Nissan Altima Sedan?
The cost of repairing a P1446 code can vary depending on the exact cause of the issue, but it typically ranges from $100 to $300 for parts and labor.
7. Can I fix a P1446 code on my 2005 Nissan Altima Sedan myself?
If you have experience with automotive repairs and the necessary tools, you may be able to fix a P1446 code yourself by replacing the faulty EVAP canister vent control valve or addressing any other identified issues.
8. How long does it take to repair a P1446 code on a 2005 Nissan Altima Sedan?
The repair time for a P1446 code can vary depending on the extent of the issue and your familiarity with automotive repairs. It may take anywhere from 1 to 3 hours to complete the repair.
9. Are there any preventive measures to avoid a P1446 code on a 2005 Nissan Altima Sedan?
Regularly inspecting and maintaining your vehicle's EVAP system, including checking for leaks and ensuring proper sealing of components, can help prevent issues that may trigger a P1446 code.
10. What happens if I ignore a P1446 code on my 2005 Nissan Altima Sedan?
Ignoring a P1446 code can lead to potential emissions issues, decreased fuel efficiency, and further damage to the EVAP system, which may result in more costly repairs down the line.
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