OBD Guide

P0327

Knock/Combustion Vibration Sensor A Circuit Low

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$56–167 (est.)

Symptoms

  • Loss of engine power
  • Detonation (engine knocking)
  • Unstable idling
  • Increased fuel consumption
  • Check Engine Light Illuminates

Causes

  • Knock sensor malfunction
  • Open or short circuit in the sensor circuit
  • Poor contact in the sensor connector
  • Interference from other electronic components
  • ECU malfunction

How to Fix

  1. Check the continuity of the knock sensor circuit
  2. Check the connectors and contacts of the sensor
  3. Check the resistance of the knock sensor
  4. Replace knock sensor if necessary
  5. Check the operation of the computer

Related codes

Error P0327 by Vehicle Brand