AutoCodes – Nissan – P0451 2010 Nissan Altima Sedan

P0451 2010 Nissan Altima Sedan 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 2010 Nissan Altima Sedan 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 3,812
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Jun 14, 2020
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Code P0451 2010 Nissan Altima Sedan 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 2010 Nissan Altima Sedan - EVAP Control System Pressure Sensor Performance - AutoCodes.com
P0451 2010 Nissan Altima Sedan Code - EVAP Control System Pressure Sensor Performance

What are the Possible Causes of the DTC P0451 2010 Nissan Altima Sedan?

  • 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 2010 Nissan Altima Sedan?

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 2010 Nissan Altima Sedan 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 2010 Nissan Altima Sedan 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 2010 Nissan Altima Sedan Code

1. What are common symptoms of OBDII code P0451 in a 2010 Nissan Altima Sedan?

The common symptoms include the check engine light illuminating on the dashboard, decreased fuel efficiency, and potential issues with the vehicle's emissions control system.

2. What could cause the OBDII code P0451 in a 2010 Nissan Altima Sedan?

The code P0451 typically indicates a problem with the EVAP control system pressure sensor in the vehicle. This could be due to a faulty sensor, wiring issues, or a leak in the EVAP system.

3. How serious is the OBDII code P0451 in a 2010 Nissan Altima Sedan?

While the code P0451 may not cause immediate drivability issues, it is important to address it promptly to ensure the vehicle's emissions system is functioning properly and to prevent potential damage to other components.

4. How can I diagnose the OBDII code P0451 in my 2010 Nissan Altima Sedan?

Diagnosing the code P0451 typically involves using an OBDII scanner to retrieve the specific fault code, inspecting the EVAP system components for leaks or damage, and testing the EVAP control system pressure sensor.

5. What are some DIY repair tips for fixing the OBDII code P0451 in a 2010 Nissan Altima Sedan?

DIY repair tips may include checking and tightening the gas cap, inspecting the EVAP system hoses for cracks or leaks, and replacing the EVAP control system pressure sensor if necessary. However, it is recommended to consult a professional mechanic for accurate diagnosis and repairs.

6. Can driving with the OBDII code P0451 in a 2010 Nissan Altima Sedan cause further damage?

Continuing to drive with the code P0451 may not immediately cause major damage, but it can lead to increased emissions, decreased fuel efficiency, and potential long-term issues with the vehicle's emissions control system if left unresolved.

7. How much does it typically cost to repair the OBDII code P0451 in a 2010 Nissan Altima Sedan?

The cost of repairing the code P0451 can vary depending on the underlying cause of the issue. It may range from a simple fix like tightening the gas cap to more complex repairs involving sensor replacement or EVAP system repairs, which could cost a few hundred dollars.

8. Can I reset the OBDII code P0451 in my 2010 Nissan Altima Sedan by disconnecting the battery?

While disconnecting the battery can reset the check engine light temporarily, it will not fix the underlying issue causing the code P0451. It is important to diagnose and address the root cause of the problem to prevent the code from reoccurring.

9. How long does it take to repair the OBDII code P0451 in a 2010 Nissan Altima Sedan?

The repair time for the code P0451 can vary depending on the specific cause of the issue and the complexity of the repair needed. Simple fixes like tightening the gas cap may take minutes, while more involved repairs could take a few hours or longer.

10. Is it safe to drive my 2010 Nissan Altima Sedan with the OBDII code P0451?

While it may be safe to drive the vehicle with the code P0451 in the short term, it is recommended to have the issue diagnosed and repaired as soon as possible to ensure the proper functioning of the emissions control system and overall vehicle performance.

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