P0451 Infiniti Code - EVAP Control System Pressure Sensor Performance
Quick Answer
The P0451 code for Infiniti vehicles refers to a fault in the EVAP (Evaporative Emission Control) system pressure sensor. Common causes include Faulty EVAP pressure sensor, Leak in the EVAP system, Damaged or loose gas cap. 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 Infiniti indicates EVAP Control System Pressure Sensor Performance.
- Common causes
- Common causes include Faulty EVAP pressure sensor, Leak in the EVAP system, Damaged or loose gas cap.
- 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.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.
Code P0451 Infiniti Description
The P0451 code for Infiniti vehicles refers to a fault in the EVAP (Evaporative Emission Control) system pressure sensor. This sensor is responsible for monitoring the pressure within the fuel tank and EVAP system. The EVAP system helps to capture and store fuel vapors from the fuel tank, preventing them from being released into the atmosphere.
Common Causes of P0451 Infiniti
- Faulty EVAP pressure sensor
- Leak in the EVAP system
- Damaged or loose gas cap
- Wiring or electrical issues
- PCM (Powertrain Control Module) malfunction
Symptoms of P0451 Infiniti
- Check Engine Light illuminated
- Decreased fuel efficiency
- Rough idling or stalling
- Strong fuel odor
- Difficulty starting the vehicle
How to Fix P0451 Infiniti
- Inspect the gas cap - Check for any visible damage or wear on the gas cap. Replace if necessary.
- Test the EVAP pressure sensor - Use a diagnostic tool to test the sensor's functionality. Replace if faulty.
- Check for leaks - Perform a smoke test to identify any leaks in the EVAP system. Repair or replace damaged components.
- Inspect wiring and connections - Check the wiring harness and connectors for any signs of damage or corrosion. Repair or replace as needed.
- Clear the code - After completing the necessary repairs, clear the diagnostic trouble codes and reset the Check Engine Light.
Cost to Fix P0451 Infiniti
The typical cost to repair a P0451 code on an Infiniti vehicle can range from $100 to $400, depending on the specific cause of the issue and the labor rates at the repair shop. This estimate includes the cost of parts such as a new EVAP pressure sensor or gas cap, as well as labor costs for diagnosis and repair. It's important to note that labor rates can vary based on location, so it's recommended to check with local auto repair shops for more accurate pricing information.
When is the Code Detected?
Need more information about the P0451 Infiniti code?
Need more information on how to fix the P0451 Infiniti code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the P0451 Infiniti code diagnosed by a professional: Find a repair shop in your area
Information for Specific Infiniti Models
- P0451 2003 Infiniti G35 — EVAP Control System Pressure Sensor Performance
- P0451 2004 Infiniti G35 — EVAP Control System Pressure Sensor Performance
- P0451 2005 Infiniti G35 — EVAP Control System Pressure Sensor Performance
- P0451 2006 Infiniti G35 — EVAP Control System Pressure Sensor Performance
Frequently Asked Questions about P0451 Infiniti Code
No Frequently Asked Questions about P0451 Infiniti Code found.
Discuss the causes and fixes for P0451 Infiniti OBDII Code
Code P0451 Infiniti comments
No comments found for this page.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.