AutoCodesInfiniti – P0452 2005 Infiniti G35

P0452 2005 Infiniti G35 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 2005 Infiniti G35 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 3,261
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 P0452 2005 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 P0452 2005 Infiniti G35 - EVAP Control System Pressure Sensor Low Input - AutoCodes.com
P0452 2005 Infiniti G35 Code - EVAP Control System Pressure Sensor Low Input

What are the Possible Causes of the DTC P0452 2005 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

How to Fix the DTC P0452 2005 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 P0452 2005 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 P0452 2005 Infiniti G35 code?

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Need Help with the 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 P0452 2005 Infiniti G35 Code

1. What does the OBDII code P0452 mean on a 2005 Infiniti G35?

P0452 indicates "EVAP Control System Pressure Sensor Low Input," meaning the EVAP pressure sensor is reporting a voltage signal lower than expected to the engine control module (ECM).

2. What are the symptoms of a P0452 code on a 2005 Infiniti G35?

Common symptoms include an illuminated check engine light, potential fuel odor near the vehicle, decreased fuel efficiency, and possible difficulty refueling.

3. What causes the P0452 code on a 2005 Infiniti G35?

Causes may include a faulty EVAP pressure sensor, damaged or disconnected wiring, a malfunctioning ECM, or a leak or blockage in the EVAP system.

4. Can a loose gas cap cause the P0452 code?

While a loose gas cap is more commonly associated with other EVAP codes, it’s worth inspecting to ensure it’s tightly sealed, as it can indirectly affect system pressure.

5. How is the P0452 code diagnosed on a 2005 Infiniti G35?

A mechanic will inspect the EVAP pressure sensor, check for damaged wiring, use a scan tool to monitor sensor readings, and test the system for leaks or blockages.

6. How do you fix the P0452 code on a 2005 Infiniti G35?

Repairs may involve replacing the EVAP pressure sensor, repairing damaged wiring or connectors, clearing blockages in the EVAP system, or addressing any leaks.

7. Can I drive my 2005 Infiniti G35 with a P0452 code?

While it may be safe to drive for short distances, ignoring the code can lead to decreased fuel efficiency and potential emissions test failure. Prompt diagnosis is recommended.

8. How much does it cost to fix the P0452 code on a 2005 Infiniti G35?

The cost varies but typically ranges from $100 to $300, depending on whether the issue is a sensor replacement, wiring repair, or another EVAP system fix.

9. What tools are needed to diagnose and repair a P0452 code?

Tools may include an OBDII scanner, a multimeter for testing electrical connections, and a smoke machine to identify EVAP leaks.

10. Can a P0452 code trigger other related EVAP codes?

Yes, a P0452 code can sometimes appear alongside other EVAP codes like P0440 (EVAP system malfunction) or P0455 (large system leak). These should also be addressed during diagnosis.

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