OBD Guide

P033E

Knock/Combustion Vibration Sensor D Circuit Intermittent

P033E is an OBD-II diagnostic trouble code meaning: Knock/Combustion Vibration Sensor D Circuit Intermittent. Common causes: broken or damaged wiring of knock sensor d, poor contact in the sensor connector. Estimated repair cost: $33–111.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$33–111 (est.)

Symptoms

  • Reduced engine power
  • Increased fuel consumption
  • Engine knock
  • Check Engine light comes on

Causes

  • Broken or damaged wiring of knock sensor D
  • Poor contact in the sensor connector
  • Knock sensor fault D
  • Problems with the engine control unit (ECU)

How to Fix

  1. Check the integrity of the wiring and connectors of the knock sensor D
  2. Clean the contacts of the sensor connector
  3. Replace knock sensor D if necessary
  4. Check the operation of the engine control unit (ECU)

Related codes

Error P033E by Vehicle Brand

FAQ

What does the P033E code mean?

P033E is an OBD-II diagnostic trouble code that indicates: Knock/Combustion Vibration Sensor D Circuit Intermittent

What causes a P033E error code?

The most common causes of P033E include: Broken or damaged wiring of knock sensor D; Poor contact in the sensor connector; Knock sensor fault D; Problems with the engine control unit (ECU).

How do I fix a P033E diagnostic trouble code?

To fix P033E: Check the integrity of the wiring and connectors of the knock sensor D. Clean the contacts of the sensor connector. Replace knock sensor D if necessary. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P033E?

Limited driving only, diagnose soon

How much does it cost to fix P033E?

The estimated repair cost for P033E is $33–111. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat