AutoCodes – Infiniti – P0452 Infiniti

P0452 Infiniti Code - EVAP Control System Pressure Sensor Low Input

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: P0452 Infiniti indicates EVAP Control System Pressure Sensor Low Input.
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 12,660

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
Step-by-Step Diagnostic Guide
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P0452 Infiniti 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 P0452 Infiniti - EVAP Control System Pressure Sensor Low Input - AutoCodes.com — P0452 Infiniti Code - EVAP Control System Pressure Sensor Low Input

What does this mean?

What are the Possible Causes of the DTC P0452 Infiniti?

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

How to Fix the DTC P0452 Infiniti?

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 P0452 Infiniti 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 P0452 Infiniti code?

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Need Help with the Code?

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Information for Specific Infiniti Models

P0452 2003 Infiniti G35 — EVAP Control System Pressure Sensor Low Input
P0452 2004 Infiniti G35 — EVAP Control System Pressure Sensor Low Input
P0452 2005 Infiniti G35 — EVAP Control System Pressure Sensor Low Input
P0452 2006 Infiniti G35 — EVAP Control System Pressure Sensor Low Input

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, itâ€™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, itâ€™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.