P2667 Fault Code

Fuel Shutoff Valve B Control Circuit High

• What does that mean?
• Symptoms
• Causes
• Solutions

The P2667 code refers to an issue with the Fuel Shutoff Valve B Control Circuit, specifically indicating a high voltage condition. This component is crucial because it regulates the flow of fuel to the engine. When the control circuit experiences high voltage, it can lead to fuel delivery problems which affect engine performance.

What are the symptoms of the P2667 code?

Drivers may notice the following symptoms when experiencing a P2667 fault:

• Difficulty starting the engine or the engine stalling frequently.
• Reduced engine performance, such as poor acceleration and sluggishness.
• An illuminated Check Engine Light on the dashboard.
• Possible fuel odor in the vehicle cabin due to inadequate fuel regulation.

What causes the P2667 code?

Several factors can trigger the P2667 code, including:

• A short circuit in the wiring harness or connections related to the fuel shutoff valve.
• A malfunctioning fuel shutoff valve that is unable to respond to signals correctly.
• Issues with the Engine Control Module (ECM) that controls the fuel shutoff valve operation.
• Corrosion or damage at the connectors leading to increased resistance and voltage spikes.

How to fix P2667?

To resolve the P2667 code, the following steps are recommended:

• Inspect the wiring and connectors associated with the fuel shutoff valve for any signs of damage, shorts, or corrosion.
• Test the fuel shutoff valve for proper operation and replace it if it is found to be faulty.
• Check the ECM for error codes and update or replace it if needed.
• Clear the code and perform a road test to ensure that the issue has been resolved.