AutoCodes – Generic – P2665

P2665 Code - Fuel Shutoff Valve 'B' Control Circuit/Open

Quick Answer

The Engine Control Module (ECM) monitors the Fuel Shutoff Valve 'B' Control Circuit. Common causes include Faulty Fuel Shutoff Valve 'B', Fuel Shutoff Valve 'B' harness is open or shorted, Fuel Shutoff Valve 'B' circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means
P2665 indicates Fuel Shutoff Valve 'B' Control Circuit/Open.
Common causes
Common causes include Faulty Fuel Shutoff Valve 'B', Fuel Shutoff Valve 'B' harness is open or shorted, Fuel Shutoff Valve 'B' circuit poor electrical connection.
Severity
High - diagnose this code as soon as possible.
Can I drive?
Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 10,998
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Jan 25, 2019
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Code P2665 Description

The Engine Control Module (ECM) monitors the Fuel Shutoff Valve 'B' Control Circuit. The ECM sets the OBDII code when the Fuel Shutoff Valve 'B' Control Circuit is out of factory specifications.
OBDII Code P2665 - Fuel Shutoff Valve 'B' Control Circuit/Open - AutoCodes.com
P2665 Code - Fuel Shutoff Valve 'B' Control Circuit/Open

What are the Possible Causes of the DTC P2665?

  • Faulty Fuel Shutoff Valve 'B'
  • Fuel Shutoff Valve 'B' harness is open or shorted
  • Fuel Shutoff Valve 'B' circuit poor electrical connection

How to Fix the DTC P2665?

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 P2665 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 P2665 code?

Need more information on how to fix the P2665 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P2665 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

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 P2665 Code

1. What are the common symptoms of OBDII code P2665 (Fuel Shutoff Valve 'B' Control Circuit/Open)?

- Common symptoms include rough idling, stalling, difficulty starting the vehicle, and a decrease in fuel efficiency.

2. What are the possible causes of OBDII code P2665?

- Possible causes of this code include a faulty fuel shutoff valve, damaged wiring or connectors in the control circuit, or a problem with the engine control module (ECM).

3. How can I diagnose the issue related to OBDII code P2665?

- Diagnosing the issue involves inspecting the fuel shutoff valve and its wiring for any visible damage, testing the valve's resistance, and using a scan tool to check for related codes.

4. What are some repair tips for fixing OBDII code P2665?

- Repair tips may include replacing the faulty fuel shutoff valve, repairing or replacing damaged wiring or connectors, and resetting the ECM after the repair is completed.

5. Can I drive my vehicle with OBDII code P2665?

- It is not recommended to drive your vehicle with this code, as it can lead to further damage and potential safety hazards. It is best to address the issue promptly.

6. How much does it cost to repair OBDII code P2665?

- The cost of repairs can vary depending on the underlying cause of the code, but it may involve parts and labor expenses ranging from $100 to $500 or more.

7. Will OBDII code P2665 cause my vehicle to fail an emissions test?

- Yes, this code can cause your vehicle to fail an emissions test due to the impact on fuel delivery and combustion efficiency.

8. Can a DIY enthusiast fix OBDII code P2665 at home?

- Depending on your level of expertise, you may be able to address this code at home by following repair guides and using the necessary tools. However, professional help is recommended for accurate diagnosis and repair.

9. How urgent is it to address OBDII code P2665?

- It is advisable to address this code as soon as possible to prevent potential engine performance issues and further damage to components like the fuel shutoff valve.

10. Is OBDII code P2665 a common issue in certain vehicle makes and models?

- This code can be more prevalent in specific vehicle makes and models, particularly those with fuel shutoff valve systems prone to wiring or valve failures.

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