AutoCodes – Nissan – P0445 2004 Nissan Sentra

P0445 2004 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 2004 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.

Save to My Repairs My Repairs

AI answers can be wrong. Verify repairs with testing. Open full chat

Code Popularity 5,146

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
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
Add Comment

💬 Need more help? Ask Coddy for instant answers — it's free!

Code P0445 2004 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 2004 Nissan Sentra - EVAP Canister Purge Volume Control Solenoid Valve Circuit Shorted - AutoCodes.com — P0445 2004 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 2004 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 2004 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 2004 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 2004 Nissan Sentra code?

Need more information on how to fix the P0445 2004 Nissan Sentra code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P0445 2004 Nissan Sentra code diagnosed by a professional: Find a repair shop in your area

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 2004 Nissan Sentra Code

1. What does OBDII code P0445 on a 2004 Nissan Sentra indicate?

The code P0445 in a 2004 Nissan Sentra points to a problem with the EVAP (Evaporative Emission Control) system related to the Canister Purge Volume Control Solenoid Valve Circuit being shorted.

2. What are the common symptoms of a P0445 code in a 2004 Nissan Sentra?

Common symptoms of a P0445 code in a 2004 Nissan Sentra may include the Check Engine light illuminating on the dashboard, rough idling, decreased fuel efficiency, and potential fuel odors.

3. What are the possible causes of a P0445 code on a 2004 Nissan Sentra?

The P0445 code on a 2004 Nissan Sentra can be triggered by issues such as a faulty purge control solenoid valve, damaged wiring or connectors in the EVAP system, or a short circuit in the solenoid valve circuit.

4. How can I diagnose a P0445 code on my 2004 Nissan Sentra?

Diagnosing a P0445 code on a 2004 Nissan Sentra typically involves using an OBDII scanner to retrieve the specific fault code, inspecting the EVAP system components for damage or corrosion, and testing the purge control solenoid valve for proper functioning.

5. Can I continue driving my 2004 Nissan Sentra with a P0445 code?

It is generally not recommended to continue driving a vehicle with a P0445 code, as it can lead to potential issues with emissions, fuel efficiency, and overall engine performance. It is best to address the problem promptly.

6. How can I repair a P0445 code on my 2004 Nissan Sentra?

Repairing a P0445 code on a 2004 Nissan Sentra may involve replacing the faulty purge control solenoid valve, repairing or replacing damaged wiring or connectors in the EVAP system, and clearing the fault code with an OBDII scanner.

7. Is it possible to reset the P0445 code on a 2004 Nissan Sentra without fixing the issue?

While you can clear the fault code temporarily by resetting the Check Engine light, the underlying issue causing the P0445 code will persist until properly diagnosed and repaired. It's essential to address the root cause of the problem.

8. Can a DIY enthusiast fix a P0445 code on a 2004 Nissan Sentra?

Depending on your level of automotive expertise, you may be able to address a P0445 code on your 2004 Nissan Sentra as a DIY project. However, it's crucial to have the necessary tools, knowledge, and safety precautions in place before attempting any repairs.

9. How much does it typically cost to repair a P0445 code on a 2004 Nissan Sentra?

The cost of repairing a P0445 code on a 2004 Nissan Sentra can vary based on factors such as the specific cause of the issue, labor rates in your area, and whether you choose to fix the problem yourself or seek professional help. It's advisable to obtain quotes from reputable mechanics.

10. Are there any preventative maintenance tips to avoid a P0445 code in a 2004 Nissan Sentra?

To help prevent a P0445 code in your 2004 Nissan Sentra, consider regularly inspecting the EVAP system components for signs of wear or damage, avoiding overfilling the fuel tank, and following the manufacturer's recommended maintenance schedule for your vehicle.