P2346 Fault Code

Cylinder 11 Above Knock Threshold

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

The P2346 error code indicates that the Engine Control Module (ECM) has detected a condition where the knock sensor has evaluated that cylinder 11 is operating above the predetermined knock threshold. Knock refers to abnormal combustion that can cause engine damage. This can occur due to various factors such as fuel quality, tuning, or internal engine issues.

What are the symptoms of the P2346 code?

• Illuminated check engine light
• Increased engine noise or knocking sound
• Reduced engine performance or power loss
• Potential rough idling or misfiring
• Possible decrease in fuel efficiency

What causes the P2346 code?

• Faulty knock sensor for cylinder 11
• Incorrect fuel mixture or poor fuel quality
• Engine mechanical issues such as excessive carbon buildup
• Timing issues within the engine's ignition system
• Exhaust leaks affecting sensor readings

How to fix P2346?

• Inspect the knock sensor and wiring for damage or corrosion
• Test and, if necessary, replace the knock sensor for cylinder 11
• Ensure the correct fuel quality is being used
• Perform a thorough engine inspection for mechanical issues
• Clear the code and perform a road test to confirm the repair