AutoCodes – Infiniti – P0451 2006 Infiniti G35

P0451 2006 Infiniti G35 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 Infiniti G35 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 3,032

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 Infiniti G35 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 Infiniti G35 - EVAP Control System Pressure Sensor Performance - AutoCodes.com — P0451 2006 Infiniti G35 Code - EVAP Control System Pressure Sensor Performance

What does this mean?

What are the Possible Causes of the DTC P0451 2006 Infiniti G35?

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 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 is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0451 2006 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.

Need more information about the P0451 2006 Infiniti G35 code?

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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 Infiniti G35 Code

1. What are common symptoms of OBDII code P0451 on a 2006 Infiniti G35?

- Common symptoms include the check engine light coming on, decreased fuel efficiency, and possible issues with the vehicle's emissions system.

2. What does the OBDII code P0451 indicate on a 2006 Infiniti G35?

- OBDII code P0451 indicates a problem with the EVAP control system pressure sensor performance in the vehicle.

3. What are possible causes of OBDII code P0451 on a 2006 Infiniti G35?

- Possible causes of code P0451 include a faulty EVAP control system pressure sensor, a damaged sensor connector, or a leak in the EVAP system.

4. How can I diagnose the OBDII code P0451 on my 2006 Infiniti G35?

- Diagnosis involves using an OBDII scanner to retrieve the code, checking the EVAP control system pressure sensor and its connections for any damage or leaks, and testing the sensor's performance.

5. Can I continue driving my 2006 Infiniti G35 with OBDII code P0451?

- It is generally safe to drive the vehicle with code P0451, but it is recommended to address the issue promptly to prevent any potential damage to the emissions system.

6. How can I repair OBDII code P0451 on my 2006 Infiniti G35?

- Repair options include replacing the EVAP control system pressure sensor, repairing any damaged wiring or connectors, and addressing any leaks in the EVAP system.

7. Are there any DIY tips for fixing OBDII code P0451 on a 2006 Infiniti G35?

- DIY tips include checking and cleaning the sensor connector, inspecting the sensor for physical damage, and testing the sensor's performance with a multimeter.

8. How much does it cost to repair OBDII code P0451 on a 2006 Infiniti G35?

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

9. Can a faulty gas cap trigger OBDII code P0451 on a 2006 Infiniti G35?

- While a faulty gas cap is not a direct cause of code P0451, it can contribute to overall issues with the EVAP system and trigger related codes.

10. How long does it take to repair OBDII code P0451 on a 2006 Infiniti G35?

- The repair time for code P0451 can vary based on the exact cause and complexity of the issue, but it typically takes around 1-2 hours for a professional mechanic to diagnose and fix the problem.