P0331

Knock/Combustion Vibration Sensor B Circuit Range/Performance

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$56–167 (est.)

Symptoms

Reduced engine power
Increased fuel consumption
Detonation (knocking) in the engine
Unstable engine idling
Check Engine Light Illuminates

Causes

Faulty knock sensor B
Damaged sensor wiring harness
Poor contact in the sensor connector
Short circuit or open circuit in the sensor circuit
Problems with the engine ECU

How to Fix

Check the integrity of the sensor wiring harness
Check the contacts in the sensor connector
Check the resistance of the knock sensor (compare with the norm)
Replace knock sensor if necessary
Clear error memory and check if error is returned

Related codes

P0325 P0326 P0327 P0328 P0332