Engine-CodesInfiniti – P0452 Infiniti

P0452 Infiniti Code - EVAP Control System Pressure Sensor Low Input

Quick Answer

The P0452 Infiniti code indicates that there is a low input signal from the EVAP (Evaporative Emission Control) System Pressure Sensor. Common causes include Faulty EVAP pressure sensor, Damaged or corroded wiring/connectors, EVAP system leaks. 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
P0452 Infiniti indicates EVAP Control System Pressure Sensor Low Input.
Common causes
Common causes include Faulty EVAP pressure sensor, Damaged or corroded wiring/connectors, EVAP system leaks.
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.
Table of contents Created and updated by William Orellana on Aug 18, 2024
💬 Need more help? Ask Auto Expert for instant answers — it's free!
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

Code P0452 Infiniti Description

The P0452 Infiniti code indicates that there is a low input signal from the EVAP (Evaporative Emission Control) System Pressure Sensor. This sensor is responsible for measuring the pressure in the fuel tank and the vapor management system. When the sensor detects a low input, it means that there may be a problem with the EVAP system, which could lead to issues with fuel efficiency, emissions, and overall engine performance. If left unaddressed, this issue could potentially result in failed emissions tests, decreased fuel economy, and even engine misfires.

OBDII Code P0452 Infiniti - EVAP Control System Pressure Sensor Low Input
P0452 Infiniti Code - EVAP Control System Pressure Sensor Low Input

Common Causes of P0452 Infiniti

  1. Faulty EVAP pressure sensor
  2. Damaged or corroded wiring/connectors
  3. EVAP system leaks
  4. Faulty purge valve
  5. Issues with the fuel tank pressure sensor

Symptoms of P0452 Infiniti

  1. Check Engine Light illuminated
  2. Decreased fuel efficiency
  3. Strong gasoline odor
  4. Rough idling or engine stalling
  5. Problems starting the vehicle

How to Fix P0452 Infiniti

  1. Diagnose the EVAP system to identify the specific cause of the low input signal.
  2. Inspect and test the EVAP pressure sensor, wiring, and connectors for any damage or corrosion.
  3. Check for leaks in the EVAP system and repair as necessary.
  4. Replace the EVAP pressure sensor if it is found to be faulty.
  5. Clear the trouble code and perform a drive cycle to ensure the issue has been resolved.

Cost to Fix P0452 Infiniti

The typical repair costs for addressing a P0452 Infiniti code can range from $100 to $300, including parts and labor. However, the final cost may vary depending on the specific cause of the issue, the location of the repair shop, and the make and model of the vehicle. It is recommended to consult with a professional mechanic to get an accurate estimate based on the individual circumstances.

When is the Code Detected?

An excessively low voltage from the sensor is sent to Engine Control Module (ECM).

Need more information about the P0452 Infiniti code?

Need more information on how to fix the P0452 Infiniti code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P0452 Infiniti code diagnosed by a professional: Find a repair shop in your area

Information for Specific Infiniti Models

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 P0452 Infiniti Code

What does the OBDII code P0452 mean on an Infiniti?

P0452 indicates that the EVAP Control System Pressure Sensor is reporting a voltage or pressure reading that is too low, suggesting a malfunction in the EVAP system.

What are the symptoms of code P0452 on an Infiniti?

Common symptoms include an illuminated Check Engine Light, difficulty starting the engine, reduced fuel efficiency, and a noticeable fuel smell.

What causes code P0452 on an Infiniti?

Possible causes include a faulty EVAP pressure sensor, damaged or disconnected wiring, a clogged vent valve, or issues with the EVAP system components like the charcoal canister.

Can I drive my Infiniti with code P0452?

While the vehicle may still be drivable, it’s not recommended to ignore the issue as it can lead to increased emissions and potential damage to EVAP system components.

How is code P0452 diagnosed on an Infiniti?

A mechanic will use a scan tool to confirm the code, inspect the EVAP system wiring and connections, test the EVAP pressure sensor, and check for leaks or blockages in the system.

What repairs can fix code P0452 on an Infiniti?

Repairs may include replacing the EVAP pressure sensor, repairing damaged wiring, cleaning or replacing blocked EVAP components, or fixing leaks in the system.

How much does it cost to fix code P0452 on an Infiniti?

Costs vary depending on the exact issue, but replacing the EVAP pressure sensor typically ranges from $100 to $300, including parts and labor.

Can a loose gas cap cause code P0452 on an Infiniti?

While a loose gas cap is more commonly associated with other EVAP codes, it’s worth checking since it can sometimes contribute to system pressure issues.

Will clearing the code P0452 solve the problem on an Infiniti?

Clearing the code will turn off the Check Engine Light temporarily, but the underlying issue must be resolved to prevent the code from returning.

How can I prevent code P0452 from occurring on an Infiniti?

Regular maintenance, ensuring the gas cap is properly tightened, and inspecting EVAP system components for wear or damage can help prevent issues leading to this code.

Discuss the causes and fixes for P0452 Infiniti OBDII Code

Code P0452 Infiniti comments

No comments found for this page.