AutoCodes – Nissan – P0445 2008 Nissan Sentra

P0445 2008 Nissan Sentra 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 2008 Nissan Sentra 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 2,841

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 Mar 31, 2024

Description
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code P0445 2008 Nissan Sentra 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 2008 Nissan Sentra - EVAP Canister Purge Volume Control Solenoid Valve Circuit Shorted - AutoCodes.com — P0445 2008 Nissan Sentra Code - EVAP Canister Purge Volume Control Solenoid Valve Circuit Shorted

What does this mean?

What are the Possible Causes of the DTC P0445 2008 Nissan Sentra?

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 2008 Nissan Sentra?

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 does this mean?

Code Tech Notes

It's a very common problem with Nissan vehicles. If the harness is not damage it's very likely that the problem is the canister purge volume control solenoid valve.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0445 2008 Nissan Sentra 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 2008 Nissan Sentra code?

Need more information on how to fix the P0445 2008 Nissan Sentra code? Get Access to Factory Service Manuals

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 P0445 2008 Nissan Sentra Code

What does the OBDII code P0445 mean for a 2008 Nissan Sentra?

P0445 indicates a short circuit in the EVAP canister purge volume control solenoid valve circuit, which is part of the vehicle's evaporative emissions control system.

What are the common symptoms of the P0445 code?

Common symptoms include the check engine light being illuminated, rough idling, poor fuel economy, and potential difficulty starting the engine.

What could cause the P0445 code to trigger?

Causes may include a faulty EVAP canister purge valve, damaged wiring or connectors, a short circuit in the solenoid circuit, or issues with the engine control module (ECM).

How can I diagnose the P0445 code?

To diagnose P0445, inspect the EVAP canister purge valve and its wiring for damage, check for any loose connections, and test the valve's operation with a multimeter.

What are the typical repairs for a P0445 code?

Repairs may involve replacing the EVAP canister purge valve, repairing or replacing damaged wiring, or addressing issues with connectors or the ECM.

Will clearing the P0445 code fix the problem?

Clearing the code may turn off the check engine light temporarily, but if the underlying issue is not resolved, the code will likely return.

Can I drive my 2008 Nissan Sentra with the P0445 code?

While it may be drivable, it is not recommended to drive extensively with this code, as it can lead to increased emissions and potential engine performance issues.

How can I prevent the P0445 code from occurring?

Regular maintenance of the vehicle's emissions system, timely inspections, and addressing any fuel system leaks can help prevent this code from appearing.

Is it safe to ignore the P0445 code?

Ignoring the P0445 code is not advisable, as it can lead to further engine problems, increased emissions, and potential failure to pass emissions tests.