AutoCodes – Nissan – P0451 2006 Nissan Maxima

P0451 2006 Nissan Maxima Code - EVAP Control System Pressure Sensor Performance

Quick Answer

The Evaporative Emission System (EVAP) control system pressure sensor detects pressure in the purge line. Common causes include Faulty Evaporative Emission System (EVAP) Pressure Sensor, Evaporative Emission System (EVAP) Pressure sensor harness is open or shorted, Evaporative Emission System (EVAP) Pressure sensor 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: P0451 2006 Nissan Maxima indicates EVAP Control System Pressure Sensor Performance.
Common causes: Common causes include Faulty Evaporative Emission System (EVAP) Pressure Sensor, Evaporative Emission System (EVAP) Pressure sensor harness is open or shorted, Evaporative Emission System (EVAP) Pressure sensor 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 2,543

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
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P0451 2006 Nissan Maxima Description

The Evaporative Emission System (EVAP) control system pressure sensor detects pressure in the purge line. The sensor output voltage to the Engine Control Module (ECM) increases as pressure increases. The EVAP control system pressure sensor is not used to control the engine system. It is used only for on board diagnosis.

OBDII Code P0451 2006 Nissan Maxima - EVAP Control System Pressure Sensor Performance - AutoCodes.com — P0451 2006 Nissan Maxima Code - EVAP Control System Pressure Sensor Performance

What does this mean?

What are the Possible Causes of the DTC P0451 2006 Nissan Maxima?

Faulty Evaporative Emission System (EVAP) Pressure Sensor
Evaporative Emission System (EVAP) Pressure sensor harness is open or shorted
Evaporative Emission System (EVAP) Pressure sensor circuit poor electrical connection
Faulty Engine Control Module (ECM)

How to Fix the DTC P0451 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.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0451 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 P0451 2006 Nissan Maxima code?

Need more information on how to fix the P0451 2006 Nissan Maxima 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 P0451 2006 Nissan Maxima Code

1. What is the common symptom of the OBDII code P0451 in a 2006 Nissan Maxima?

The common symptom of the P0451 code is the illumination of the check engine light on the dashboard.

2. What does the P0451 code indicate in a 2006 Nissan Maxima?

The P0451 code indicates a problem with the EVAP control system pressure sensor's performance in the vehicle.

3. What are the possible causes of the P0451 code in a 2006 Nissan Maxima?

Possible causes of the P0451 code include a faulty EVAP control system pressure sensor, wiring issues, or a problem with the vehicle's fuel tank pressure sensor.

4. How serious is the P0451 code in a 2006 Nissan Maxima?

While the P0451 code may not cause immediate drivability issues, it is important to address it promptly to ensure proper functioning of the EVAP system and emissions control.

5. How can I diagnose the P0451 code in a 2006 Nissan Maxima?

Diagnosing the P0451 code involves using an OBDII scanner to retrieve the code, inspecting the EVAP system components for any signs of damage, and testing the pressure sensor's performance.

6. What are some repair tips for fixing the P0451 code in a 2006 Nissan Maxima?

Repair tips for the P0451 code may include replacing the EVAP control system pressure sensor, checking and repairing any damaged wiring, or addressing issues with the fuel tank pressure sensor.

7. Can I drive my 2006 Nissan Maxima with the P0451 code?

It is generally safe to drive your vehicle with the P0451 code, but it is recommended to have the issue diagnosed and repaired as soon as possible to prevent any potential emissions-related problems.

8. How much does it cost to repair the P0451 code in a 2006 Nissan Maxima?

The cost of repairing the P0451 code can vary depending on the specific cause of the issue, but it may range from $100 to $300 for parts and labor.

9. Will the P0451 code reset itself in a 2006 Nissan Maxima?

If the underlying issue causing the P0451 code is not fixed, the code may continue to reappear even after clearing it. It is crucial to address the root cause of the problem to prevent recurrence.

10. Can I repair the P0451 code in my 2006 Nissan Maxima myself?

While some DIY enthusiasts may be able to troubleshoot and repair the P0451 code themselves, it is recommended to seek professional assistance, especially if you are not experienced in handling automotive repairs.