P1446 2005 Nissan Maxima 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 Maxima 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 Maxima 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 Maxima?
- 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 Maxima?
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 Maxima 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 P1446 2005 Nissan Maxima code?
Need more information on how to fix the P1446 2005 Nissan Maxima code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the P1446 2005 Nissan Maxima code diagnosed by a professional: Find a repair shop in your area
Frequently Asked Questions about P1446 2005 Nissan Maxima Code
1. What does OBDII code P1446 for a 2005 Nissan Maxima indicate?
The code P1446 indicates a problem with the EVAP canister vent control valve close function.
2. What are some common symptoms of a P1446 code on a 2005 Nissan Maxima?
Common symptoms include difficulty starting the vehicle, reduced fuel efficiency, and a check engine light illuminated on the dashboard.
3. What are the possible causes of a P1446 code on a 2005 Nissan Maxima?
Potential causes include a faulty EVAP canister vent control valve, a clogged vent valve, damaged hoses, or a malfunctioning EVAP canister.
4. How can I diagnose a P1446 code on my 2005 Nissan Maxima?
Diagnosis typically involves using an OBDII scanner to retrieve the specific fault code, visually inspecting the EVAP system components, and testing the vent control valve for proper operation.
5. Can I continue driving my 2005 Nissan Maxima with a P1446 code?
It is not recommended to drive your vehicle with a P1446 code as it can lead to increased emissions, reduced fuel efficiency, and potential damage to other components of the EVAP system.
6. How can I repair a P1446 code on my 2005 Nissan Maxima?
Repairing a P1446 code may involve replacing the EVAP canister vent control valve, clearing the code with an OBDII scanner, and testing the system to ensure proper operation.
7. Are there any DIY tips for fixing a P1446 code on a 2005 Nissan Maxima?
While some DIY enthusiasts may attempt to replace the vent control valve themselves, it is recommended to consult a professional mechanic for proper diagnosis and repair of the EVAP system.
8. How much does it cost to repair a P1446 code on a 2005 Nissan Maxima?
The cost of repairing a P1446 code can vary depending on the specific cause of the issue, but it may range from $100 to $300 for parts and labor.
9. Will a P1446 code on a 2005 Nissan Maxima affect the vehicle's performance?
In some cases, a P1446 code may cause performance issues such as rough idling or difficulty starting the engine, so it is important to address the problem promptly.
10. How often does a P1446 code occur in a 2005 Nissan Maxima?
While the occurrence of a P1446 code can vary, it is not an uncommon issue in older vehicles like the 2005 Nissan Maxima with an EVAP system.
Discuss the causes and fixes for P1446 2005 Nissan Maxima OBDII Code
Code P1446 2005 Nissan Maxima comments
No comments found for this page.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.
