OBD Guide

P0330

Knock/Combustion Vibration Sensor B Circuit

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$33–89 (est.)

Symptoms

  • Reduced engine power
  • Increased fuel consumption
  • Engine knock
  • Check Engine Light Illuminates

Causes

  • Open or short circuit in the sensor wiring harness
  • Knock Sensor B Malfunction
  • Poor contact in the sensor connector
  • Wiring damage
  • ECU malfunction

How to Fix

  1. Check the integrity of the sensor wiring harness
  2. Check resistance of knock sensor B
  3. Clean the contacts of the sensor connector
  4. Replace knock sensor B if necessary
  5. Check the operation of the computer

Related codes

Error P0330 by Vehicle Brand