Knock/Combustion Vibration Sensor A Circuit Range/Performance

Where it lives

For P0326, the description names the sensor as the part involved.

Check these first

• Faulty knock sensor
• Loose or over-torqued sensor bolt
• Damaged knock sensor wiring
• Engine noise or vibration triggering false knock
• Sensor read-out-of-range

What to do next

1. Inspect the knock sensor wiring and connector
2. Verify the sensor bolt torque and mounting surface
3. Listen for abnormal engine noise that mimics knock
4. Test the sensor's output with a scope during light throttle
5. Replace the sensor if its response is out of spec

Look up another code