AutoCodes – Nissan – P0443 2006 Nissan Maxima

P0443 2006 Nissan Maxima Code - EVAP Canister Purge Volume Control Solenoid Valve

Quick Answer

This system controls the flow rate of fuel vapor from the EVAP canister. Common causes include Faulty EVAP Canister Purge Volume Control Solenoid Valve, EVAP Canister Purge Volume Control Solenoid Valve harness is open or shorted, EVAP Canister Purge Volume Control Solenoid Valve circuit poor electrical 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
P0443 2006 Nissan Maxima indicates EVAP Canister Purge Volume Control Solenoid Valve.
Common causes
Common causes include Faulty EVAP Canister Purge Volume Control Solenoid Valve, EVAP Canister Purge Volume Control Solenoid Valve harness is open or shorted, EVAP Canister Purge Volume Control Solenoid Valve circuit poor electrical 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 6,424
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Jun 28, 2020
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Code P0443 2006 Nissan Maxima Description

This system controls the flow rate of fuel vapor from the EVAP canister. The opening of the vapor by-pass passage in the EVAP canister purge volume control solenoid valve changes to control the flow rate. The EVAP canister purge volume control solenoid valve repeats ON/OFF operation according to the signal sent from the Engine Control Module (ECM). The opening of the valve varies for optimum engine control. The optimum value stored in the ECM is determined by considering various engine conditions. When the engine is operating, the flow rate of fuel vapor from the EVAP canister is regulated as the airflow changes.
The EVAP canister purge volume control solenoid valve uses an ON/OFF duty to control the flow rate of fuel vapor from the EVAP canister. The EVAP canister purge volume control solenoid valve is moved by ON/OFF pulses from the ECM. The longer the ON pulse, the greater the amount of fuel vapor that will flow through the valve.
The Diagnostic Trouble Code (DTC) will set when the canister purge flow is detected during the specified driving conditions, even when the EVAP canister purge volume control solenoid valve is completely closed.
OBDII Code P0443 2006 Nissan Maxima - EVAP Canister Purge Volume Control Solenoid Valve - AutoCodes.com
P0443 2006 Nissan Maxima Code - EVAP Canister Purge Volume Control Solenoid Valve

What are the Possible Causes of the DTC P0443 2006 Nissan Maxima?

  • Faulty EVAP Canister Purge Volume Control Solenoid Valve
  • EVAP Canister Purge Volume Control Solenoid Valve harness is open or shorted
  • EVAP Canister Purge Volume Control Solenoid Valve circuit poor electrical connection
  • Faulty EVAP Control System Pressure Sensor

How to Fix the DTC P0443 2006 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.

Code Tech Notes

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0443 2006 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 P0443 2006 Nissan Maxima 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 P0443 2006 Nissan Maxima Code

1. What does OBDII code P0443 mean on a 2006 Nissan Maxima?

P0443 indicates a malfunction in the EVAP Canister Purge Volume Control Solenoid Valve circuit, which is part of the vehicle's emissions control system.

2. What are the common symptoms of code P0443 in a 2006 Nissan Maxima?

Symptoms include the Check Engine Light turning on, decreased fuel efficiency, difficulty starting the engine, and sometimes a faint fuel odor.

3. What causes the P0443 code to appear in a 2006 Nissan Maxima?

Possible causes include a faulty purge control solenoid valve, damaged wiring or connectors in the valve circuit, or an issue with the vehicle's PCM (Powertrain Control Module).

4. Can I drive my 2006 Nissan Maxima with a P0443 code?

While it may not immediately affect drivability, prolonged driving with this code can lead to increased emissions and potential damage to other components.

5. How do I fix a P0443 code on a 2006 Nissan Maxima?

Repair steps may include inspecting and replacing the purge control solenoid valve, checking and repairing any damaged wires or connectors, and ensuring the PCM is functioning properly.

6. Where is the EVAP Canister Purge Volume Control Solenoid Valve located on a 2006 Nissan Maxima?

The valve is typically located near the intake manifold or along the engine's vacuum lines. Refer to the vehicle's service manual for exact positioning.

7. How much does it cost to fix a P0443 code on a 2006 Nissan Maxima?

Repair costs can vary but typically range from $100 to $300, depending on whether the solenoid valve needs replacement or if there are wiring issues to resolve.

8. Can a loose gas cap cause the P0443 code in a 2006 Nissan Maxima?

No, a loose gas cap typically triggers a different EVAP-related code, such as P0455 or P0442, not P0443.

9. How can I test the EVAP Canister Purge Volume Control Solenoid Valve on my 2006 Nissan Maxima?

You can test the valve using a multimeter to check for proper resistance or by applying voltage to ensure it opens and closes properly. Be sure to follow safety precautions.

10. Will clearing the P0443 code with a scan tool solve the issue on a 2006 Nissan Maxima?

Clearing the code will turn off the Check Engine Light temporarily, but the issue will return if the underlying problem is not fixed.

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