AutoCodes – Nissan – P0443 2008 Nissan Pathfinder

P0443 2008 Nissan Pathfinder 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 2008 Nissan Pathfinder 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 8,993

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 2008 Nissan Pathfinder 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 2008 Nissan Pathfinder - EVAP Canister Purge Volume Control Solenoid Valve - AutoCodes.com — P0443 2008 Nissan Pathfinder Code - EVAP Canister Purge Volume Control Solenoid Valve

What does this mean?

What are the Possible Causes of the DTC P0443 2008 Nissan Pathfinder?

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 2008 Nissan Pathfinder?

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.

There is a factory service bulletin for the 2008 Nissan Pathfinder:
2008 Nissan Pathfinder Factory Service Bulletin OBDII Code P0443

The service bulletin recommends reprogramming the Engine Control Module (ECM) to repair the problem.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0443 2008 Nissan Pathfinder 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 2008 Nissan Pathfinder code?

Need more information on how to fix the P0443 2008 Nissan Pathfinder code? Get Access to Factory Service Manuals

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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 2008 Nissan Pathfinder Code

1. What does the OBDII code P0443 on a 2008 Nissan Pathfinder indicate?

The P0443 code specifically points to a problem with the EVAP Canister Purge Volume Control Solenoid Valve.

2. What are the common symptoms of a P0443 code in a 2008 Nissan Pathfinder?

Common symptoms include rough idling, decreased fuel efficiency, a strong fuel odor, and the illumination of the check engine light.

3. What causes the P0443 code to appear on a 2008 Nissan Pathfinder?

The code is typically triggered by a malfunction in the EVAP Canister Purge Volume Control Solenoid Valve, which may be due to a faulty valve, damaged wiring, or a loose connection.

4. How can I diagnose the issue causing the P0443 code on my 2008 Nissan Pathfinder?

A thorough inspection of the EVAP system, including checking the solenoid valve, hoses, and wiring for any signs of damage or disconnection, is crucial for diagnosing the problem.

5. Can I continue driving my 2008 Nissan Pathfinder with a P0443 code?

While the vehicle may still be operational, it is advisable to address the issue promptly to prevent potential damage to the engine and ensure optimal performance.

6. How can I repair the EVAP Canister Purge Volume Control Solenoid Valve on my 2008 Nissan Pathfinder?

Repairing the solenoid valve may involve replacing the faulty component, repairing damaged wiring or connections, or clearing any blockages in the EVAP system.

7. Are there any DIY tips for addressing the P0443 code on a 2008 Nissan Pathfinder?

DIY enthusiasts can attempt to inspect the solenoid valve, wiring, and hoses themselves, but it is recommended to seek professional assistance for a thorough diagnosis and repair.

8. Will resetting the check engine light resolve the P0443 code on my 2008 Nissan Pathfinder?

Resetting the check engine light may temporarily clear the code, but it will not fix the underlying issue causing the P0443 code to appear.

9. How much does it cost to repair a P0443 code on a 2008 Nissan Pathfinder?

The cost of repairing a P0443 code can vary depending on the extent of the issue, the need for replacement parts, and labor costs, so it is advisable to obtain quotes from reputable mechanics.

10. Can a P0443 code on a 2008 Nissan Pathfinder lead to emissions test failure?

Yes, unresolved EVAP system issues, such as the P0443 code, can cause a vehicle to fail emissions tests due to increased emissions and non-compliance with environmental regulations.