AutoCodes – Nissan – P0443 2011 Nissan Altima Sedan

P0443 2011 Nissan Altima Sedan 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 2011 Nissan Altima Sedan 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 3,691

How popular is this code, among other codes? Low

Repair Importance Level

Low (Monitor) (1 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Jun 28, 2020

Description
Step-by-Step Diagnostic Guide
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code P0443 2011 Nissan Altima Sedan 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 2011 Nissan Altima Sedan - EVAP Canister Purge Volume Control Solenoid Valve - AutoCodes.com — P0443 2011 Nissan Altima Sedan Code - EVAP Canister Purge Volume Control Solenoid Valve

What does this mean?

What are the Possible Causes of the DTC P0443 2011 Nissan Altima Sedan?

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 2011 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 does this mean?

Code Tech Notes

It's a very common problem with Nissan vehicles. If the harness is not damaged, it's very likely that the problem is the canister purge volume control solenoid valve.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0443 2011 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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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 2011 Nissan Altima Sedan Code

1. What does OBDII code P0443 mean for my 2011 Nissan Altima Sedan?

- OBDII code P0443 on a 2011 Nissan Altima Sedan indicates a problem with the EVAP Canister Purge Volume Control Solenoid Valve.

2. What are the common symptoms of a P0443 code on my Nissan Altima?

- Common symptoms of a P0443 code include rough idling, decreased fuel efficiency, and the illumination of the check engine light.

3. What are the possible causes of a P0443 code on a 2011 Nissan Altima Sedan?

- The P0443 code on a 2011 Nissan Altima Sedan can be caused by a faulty EVAP Canister Purge Volume Control Solenoid Valve, wiring issues, or a malfunctioning PCM.

4. How can I diagnose a P0443 code on my Nissan Altima?

- Diagnosing a P0443 code involves checking the EVAP system components, inspecting the wiring for any damage, and testing the EVAP Canister Purge Volume Control Solenoid Valve for proper operation.

5. Can I continue to drive my Nissan Altima with a P0443 code?

- It is generally not recommended to continue driving your Nissan Altima with a P0443 code, as it can lead to potential issues with emissions control and engine performance.

6. How do I repair a P0443 code on my 2011 Nissan Altima Sedan?

- To repair a P0443 code, you may need to replace the EVAP Canister Purge Volume Control Solenoid Valve, repair any damaged wiring, or reprogram the PCM if necessary.

7. Are there any DIY tips for fixing a P0443 code on a Nissan Altima?

- While some basic troubleshooting steps can be performed at home, it is recommended to consult a professional mechanic for accurate diagnosis and repair of a P0443 code on a Nissan Altima.

8. Can a P0443 code on a 2011 Nissan Altima Sedan affect vehicle performance?

- Yes, a P0443 code can affect the performance of a Nissan Altima by causing issues such as poor fuel economy, rough idling, and potential emissions problems.

9. How much does it cost to fix a P0443 code on a Nissan Altima?

- The cost of fixing a P0443 code on a Nissan Altima can vary depending on the exact cause of the issue, but it may range from $100 to $300 for parts and labor.

10. Will resetting the check engine light resolve a P0443 code on my Nissan Altima?

- Resetting the check engine light may temporarily turn it off, but it will not fix the underlying issue causing the P0443 code. It is important to diagnose and address the root cause of the problem.