AutoCodesInfiniti – P0445 Infiniti

P0445 Infiniti Code - EVAP Canister Purge Volume Control Solenoid Valve Circuit Shorted

Quick Answer

The Evaporative Emission System (EVAP) Canister Purge Volume Control Solenoid Valve controls flow rate of fuel vapor from the EVAP canister. Common causes include Faulty Evaporative Emission (EVAP) Purge Solenoid Control, Evaporative Emission (EVAP) Purge Solenoid Control harness is open or shorted, Evaporative Emission (EVAP) Purge Solenoid Control 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
P0445 Infiniti indicates EVAP Canister Purge Volume Control Solenoid Valve Circuit Shorted.
Common causes
Common causes include Faulty Evaporative Emission (EVAP) Purge Solenoid Control, Evaporative Emission (EVAP) Purge Solenoid Control harness is open or shorted, Evaporative Emission (EVAP) Purge Solenoid Control 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 8,842
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 P0445 Infiniti Description

The Evaporative Emission System (EVAP) Canister Purge Volume Control Solenoid Valve controls flow rate of fuel vapor from the EVAP canister. The opening of the vapor by-pass passage in the EVAP canister purge volume control solenoid valve changes to control the flow rate. The EVAP canister purge volume control solenoid valve repeats ON/OFF operation according to the signal sent from the Engine Control Module (ECM). The opening of the valve varies for optimum engine control. The optimum value stored in the ECM is determined by considering various engine conditions. When the engine is operating, the flow rate of fuel vapor from the EVAP canister is regulated as the air flow changes.
The EVAP canister purge volume control solenoid valve uses a ON/OFF duty to control the flow rate of fuel vapor from the EVAP canister. The EVAP canister purge volume control solenoid valve is moved by ON/OFF pulses from the ECM. The longer the ON pulse, the greater the amount of fuel vapor that will flow through the valve.
OBDII Code P0445 Infiniti - EVAP Canister Purge Volume Control Solenoid Valve Circuit Shorted - AutoCodes.com
P0445 Infiniti Code - EVAP Canister Purge Volume Control Solenoid Valve Circuit Shorted

What are the Possible Causes of the DTC P0445 Infiniti?

  • Faulty Evaporative Emission (EVAP) Purge Solenoid Control
  • Evaporative Emission (EVAP) Purge Solenoid Control harness is open or shorted
  • Evaporative Emission (EVAP) Purge Solenoid Control circuit poor electrical connection

How to Fix the DTC P0445 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.

Code Tech Notes

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0445 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 P0445 Infiniti code?

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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 P0445 Infiniti Code

1. What does the OBDII code P0445 mean on an Infiniti?

P0445 indicates that the EVAP Canister Purge Volume Control Solenoid Valve Circuit has a short, which means there’s an electrical fault in the purge valve circuit.

2. What are the common symptoms of code P0445 on an Infiniti?

Symptoms may include the check engine light turning on, a noticeable fuel odor, reduced fuel efficiency, and potential difficulty starting the vehicle.

3. What causes the P0445 code to appear on an Infiniti?

Common causes include a shorted or damaged purge control solenoid valve, faulty wiring or connectors in the EVAP system, or a malfunctioning engine control module (ECM).

4. Can I continue driving my Infiniti with a P0445 code?

While the vehicle might still be drivable, it’s not recommended because it can lead to increased emissions and potential damage to the EVAP system if not addressed.

5. How do I diagnose the P0445 code on an Infiniti?

Diagnosis involves checking the purge volume control solenoid valve for shorts, inspecting the wiring and connectors for damage, and using a multimeter to test the circuit.

6. What repairs are typically needed for a P0445 code on an Infiniti?

Repairs may include replacing the purge control solenoid valve, repairing or replacing damaged wiring, or cleaning and securing electrical connections.

7. How much does it cost to fix the P0445 code on an Infiniti?

Repair costs can range from $100 to $300 depending on whether the purge valve or wiring needs replacement, plus diagnostic fees if performed by a professional.

8. Can a loose gas cap cause the P0445 code?

No, a loose gas cap is more likely to trigger codes like P0455 or P0440, not P0445, which specifically relates to the purge solenoid circuit.

9. Is the P0445 code related to emissions testing?

Yes, a P0445 code can cause your Infiniti to fail an emissions test because it indicates a fault in the EVAP system, which controls fuel vapor emissions.

10. What tools are needed to troubleshoot the P0445 code on an Infiniti?

You’ll need an OBDII scanner, a multimeter to test the circuit, and basic tools to inspect or replace the purge solenoid valve.

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