AutoCodes – Infiniti – P0441 2004 Infiniti G35

P0441 2004 Infiniti G35 Code - Evaporative Control System Incorrect Purge Flow

Quick Answer

The Engine Control Module (ECM) tests the Evaporative Emission (EVAP) system for the following conditions: - Large and small leaks - Excess vacuum - Purge flow during non-commanded conditions - Fuel Level and Fuel Pressure sensor faults - EVAP Purge and Vent Valve faults The ECM monitors the Fuel Tank Pressure sensor in order to determine the level of vacuum/pressure in the EVAP system. Common causes include EVAP canister purge volume control solenoid valve stuck closed, EVAP control system pressure sensor and the circuit, Loose, disconnected or improper connection of rubber tube. 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: P0441 2004 Infiniti G35 indicates Evaporative Control System Incorrect Purge Flow.
Common causes: Common causes include EVAP canister purge volume control solenoid valve stuck closed, EVAP control system pressure sensor and the circuit, Loose, disconnected or improper connection of rubber tube.
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 4,026

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 14, 2020

Description
Step-by-Step Diagnostic Guide
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code P0441 2004 Infiniti G35 Description

The Engine Control Module (ECM) tests the Evaporative Emission (EVAP) system for the following conditions:
- Large and small leaks
- Excess vacuum
- Purge flow during non-commanded conditions
- Fuel Level and Fuel Pressure sensor faults
- EVAP Purge and Vent Valve faults
The ECM monitors the Fuel Tank Pressure sensor in order to determine the level of vacuum/pressure in the EVAP system. The ECM commands both the EVAP Purge Solenoid and the EVAP Vent Valve ON when the conditions are met in order to apply an engine vacuum to the EVAP system. The ECM commands the EVAP Purge Solenoid OFF once the system has reached a predetermined level of vacuum. This test verifies if a vacuum can be achieved in the EVAP system. Failure to develop a vacuum may be caused by a large leak or a restriction.

OBDII Code P0441 2004 Infiniti G35 - Evaporative Control System Incorrect Purge Flow - AutoCodes.com — P0441 2004 Infiniti G35 Code - Evaporative Control System Incorrect Purge Flow

What does this mean?

What are the Possible Causes of the DTC P0441 2004 Infiniti G35?

EVAP canister purge volume control solenoid valve stuck closed
EVAP control system pressure sensor and the circuit
Loose, disconnected or improper connection of rubber tube
Blocked rubber tube
Cracked EVAP canister
EVAP canister purge volume control solenoid valve circuit
Accelerator pedal position sensor
Blocked purge port
EVAP canister vent control valve

How to Fix the DTC P0441 2004 Infiniti G35?

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

The P0441 code means that the control module has detected a leak in the Evaporative Emission (EVAP). Loose fuel tank filler cap is the most common cause that triggers the P0441 code.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0441 2004 Infiniti G35 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 P0441 2004 Infiniti G35 Code

1. What are the common symptoms of OBDII code P0441 on a 2004 Infiniti G35?

The common symptoms of code P0441 on a 2004 Infiniti G35 may include a check engine light illuminated on the dashboard, decreased fuel efficiency, and a noticeable gasoline odor.

2. What does the OBDII code P0441 indicate specifically for a 2004 Infiniti G35?

Code P0441 indicates an issue with the Evaporative Emission Control System Incorrect Purge Flow on a 2004 Infiniti G35. It means that there is a problem with the flow of fuel vapor from the charcoal canister to the engine.

3. What are the possible causes of OBDII code P0441 on a 2004 Infiniti G35?

The possible causes of code P0441 on a 2004 Infiniti G35 may include a faulty purge valve, a leak in the EVAP system, a clogged charcoal canister, or a malfunctioning EVAP pressure sensor.

4. How can I diagnose the OBDII code P0441 on my 2004 Infiniti G35?

To diagnose code P0441 on a 2004 Infiniti G35, you can start by checking the gas cap for tightness, inspecting the EVAP system components for any visible damage or leaks, and using a scan tool to monitor the purge valve operation.

5. What are the repair options for OBDII code P0441 on a 2004 Infiniti G35?

The repair options for code P0441 on a 2004 Infiniti G35 may include replacing the purge valve, repairing any leaks in the EVAP system, cleaning or replacing the charcoal canister, or addressing any issues with the EVAP pressure sensor.

6. Can I continue driving my 2004 Infiniti G35 with OBDII code P0441?

It is not recommended to continue driving your 2004 Infiniti G35 with code P0441 illuminated, as it can lead to increased emissions, decreased fuel efficiency, and potential damage to the engine components over time.

7. How much does it typically cost to repair OBDII code P0441 on a 2004 Infiniti G35?

The cost of repairing code P0441 on a 2004 Infiniti G35 can vary depending on the specific cause of the issue, but it may range from $100 to $500, including parts and labor.

8. How long does it usually take to repair OBDII code P0441 on a 2004 Infiniti G35?

The repair time for code P0441 on a 2004 Infiniti G35 can vary based on the complexity of the issue and the availability of parts, but it typically takes 1-2 hours to diagnose and fix the problem.

9. Are there any common DIY fixes for OBDII code P0441 on a 2004 Infiniti G35?

Some common DIY fixes for code P0441 on a 2004 Infiniti G35 include checking and tightening the gas cap, inspecting and cleaning the purge valve, and visually inspecting the EVAP system for leaks or damage.

10. How can I prevent OBDII code P0441 from recurring on my 2004 Infiniti G35?

To prevent code P0441 from recurring on your 2004 Infiniti G35, it is essential to perform regular maintenance on the EVAP system, ensure the gas cap is properly sealed, and address any issues with the purge valve or charcoal canister promptly.