P0329

Knock/Combustion Vibration Sensor A Circuit Intermittent

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$56–167 (est.)

Symptoms

Reduced engine power
Increased fuel consumption
Unstable engine operation
Check Engine Light Illuminates

Causes

Knock sensor malfunction
Open or shorted wiring harness
Poor contact in the sensor connector
Damage to wire shielding
Engine ECU malfunction

How to Fix

Check the integrity of the knock sensor wiring harness
Check the condition of the sensor connector and the presence of oxides
Check knock sensor resistance (must meet manufacturer's specifications)
Replace the knock sensor if a malfunction is detected
Check the sensor circuit for interference and replace the shielded wires if necessary.

Related codes

P0325 P0326 P0327 P0328 P0330