AutoCodes – Nissan – P1446 2006 Nissan Sentra

P1446 2006 Nissan Sentra 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 2006 Nissan Sentra 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.
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Code Popularity 4,803
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Aug 22, 2019
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Code P1446 2006 Nissan Sentra Description

The EVAP canister vent control valve is located on the EVAP canister and is used to seal the canister vent.
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.
OBDII Code P1446 2006 Nissan Sentra - EVAP Canister Vent Control Valve Close - AutoCodes.com
P1446 2006 Nissan Sentra Code - EVAP Canister Vent Control Valve Close

What are the Possible Causes of the DTC P1446 2006 Nissan Sentra?

  • 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 2006 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 P1446 2006 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 P1446 2006 Nissan Sentra code?

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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 P1446 2006 Nissan Sentra Code

1. What does OBDII code P1446 on a 2006 Nissan Sentra mean?

The code P1446 indicates a problem with the EVAP canister vent control valve close on a 2006 Nissan Sentra.

2. What are the common symptoms of a P1446 code on a 2006 Nissan Sentra?

Common symptoms include the check engine light coming on, poor fuel efficiency, and potentially a strong fuel odor.

3. What are the possible causes of a P1446 code on a 2006 Nissan Sentra?

Potential causes include a faulty vent control valve, issues with the EVAP system hoses, a malfunctioning purge valve, or a damaged charcoal canister.

4. How can I diagnose a P1446 code on my 2006 Nissan Sentra?

Diagnosing a P1446 code typically involves using an OBDII scanner to read the code, inspecting the EVAP system components for any visible damage, and testing the vent control valve and purge valve for proper operation.

5. How do I repair a P1446 code on a 2006 Nissan Sentra?

Repairing a P1446 code may involve replacing the vent control valve, checking and repairing any damaged hoses in the EVAP system, testing and potentially replacing the purge valve, or replacing the charcoal canister if necessary.

6. Can I continue driving my 2006 Nissan Sentra with a P1446 code?

It is generally not recommended to continue driving with a P1446 code, as it can lead to poor fuel efficiency and potentially cause further damage to the EVAP system components.

7. How much does it cost to fix a P1446 code on a 2006 Nissan Sentra?

The cost of fixing a P1446 code can vary depending on the specific issue causing the code. It is recommended to consult with a mechanic for an accurate diagnosis and cost estimate.

8. Can I clear a P1446 code on my 2006 Nissan Sentra with an OBDII scanner?

Clearing the P1446 code with an OBDII scanner may temporarily turn off the check engine light, but it is important to address the root cause of the code to prevent it from reoccurring.

9. What tools do I need to repair a P1446 code on a 2006 Nissan Sentra?

Common tools needed for repairing a P1446 code include an OBDII scanner, basic hand tools for removing and installing components, and potentially a smoke machine for diagnosing EVAP system leaks.

10. How often does a P1446 code occur in a 2006 Nissan Sentra?

The occurrence of a P1446 code can vary depending on the vehicle's maintenance history and driving conditions, but it is not an uncommon issue for the 2006 Nissan Sentra.

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