AutoCodesInfiniti – P1447 Infiniti

P1447 Infiniti Code - Evaporative Emission Control System Purge Flow Monitor

Quick Answer

In this evaporative emission (EVAP) control system, purge flow occurs during non-closed throttle conditions. 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 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
P1447 Infiniti indicates Evaporative Emission Control System Purge Flow Monitor.
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
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.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 15,874
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Aug 22, 2019
💬 Need more help? Ask Coddy for instant answers — it's free!

Code P1447 Infiniti Description

In this evaporative emission (EVAP) control system, purge flow occurs during non-closed throttle conditions. Purge volume is related to air intake volume. Under normal purge conditions (non-closed throttle), the EVAP canister purge volume control solenoid valve is open to admit purge flow. Purge flow exposes the EVAP control system pressure sensor to intake manifold vacuum.
OBDII Code P1447 Infiniti - Evaporative Emission Control System Purge Flow Monitor - AutoCodes.com
P1447 Infiniti Code - Evaporative Emission Control System Purge Flow Monitor

What are the Possible Causes of the DTC P1447 Infiniti?

  • 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
  • Closed throttle position switch
  • Blocked purge port
  • Closed throttle position switch

How to Fix the DTC P1447 Infiniti?

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 P1447 Infiniti 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 P1447 Infiniti code?

Need more information on how to fix the P1447 Infiniti code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P1447 Infiniti code diagnosed by a professional: Find a repair shop in your area

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 P1447 Infiniti Code

1. What does the OBDII code P1447 mean for an Infiniti?

P1447 indicates an issue with the Evaporative Emission Control System, specifically related to the purge flow monitor detecting a malfunction.

2. What are common symptoms of the P1447 code?

Symptoms include an illuminated check engine light, poor fuel efficiency, a noticeable fuel smell, and potential difficulty passing emissions tests.

3. What causes the P1447 code to appear?

Common causes include a faulty purge control valve, a clogged or damaged charcoal canister, vacuum leaks, or a malfunctioning pressure sensor in the EVAP system.

4. Can I drive my Infiniti with the P1447 code?

While the vehicle may still be drivable, ignoring the code can lead to reduced fuel efficiency, increased emissions, and potential damage to the EVAP system.

5. How is the P1447 code diagnosed?

A mechanic will use a scan tool to confirm the code, visually inspect the EVAP system for damage or leaks, and test components like the purge valve, charcoal canister, and hoses.

6. What repairs are typically needed to fix the P1447 code?

Repairs may include replacing the purge control valve, repairing or replacing damaged hoses, replacing the charcoal canister, or addressing leaks in the system.

7. How much does it cost to fix the P1447 code?

The cost depends on the specific issue, but repairs typically range from $100 to $500, including parts and labor.

8. Can a loose gas cap cause the P1447 code?

A loose or damaged gas cap usually triggers a different EVAP-related code, but it’s still worth checking as part of the initial diagnosis.

9. How can I prevent the P1447 code from recurring?

Regularly inspect the EVAP system for damage, ensure the gas cap is properly secured, and address any small EVAP issues before they escalate.

10. Will clearing the P1447 code fix the problem?

Clearing the code will turn off the check engine light temporarily, but the underlying issue must be repaired to prevent the code from returning.

Discuss the causes and fixes for P1447 Infiniti OBDII Code

Code P1447 Infiniti comments

No comments found for this page.

AutoCodes App

Fix Your Car Smarter

Try the New AutoCodes App!

Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.

AutoCodes App on Google Play