P0334
Knock/Combustion Vibration Sensor B Circuit Intermittent
P0334 is an OBD-II diagnostic trouble code meaning: Knock/Combustion Vibration Sensor B Circuit Intermittent. Common causes: damage to knock sensor b wiring harness, poor contact in the sensor connector. Estimated repair cost: $56–167.
Symptoms
- Unstable engine operation
- Power reduction
- Increased fuel consumption
- Check Engine light comes on
Causes
- Damage to knock sensor B wiring harness
- Poor contact in the sensor connector
- Knock Sensor B Malfunction
- Sensor circuit grounding problems
- Engine ECU malfunction
How to Fix
- Check the integrity of the knock sensor B wiring harness
- Clean and check the contacts in the sensor connector
- Replace knock sensor B if necessary
- Check sensor circuit grounding
- Test the engine ECU
Related codes
Error P0334 by Vehicle Brand
FAQ
What does the P0334 code mean?
P0334 is an OBD-II diagnostic trouble code that indicates: Knock/Combustion Vibration Sensor B Circuit Intermittent
What causes a P0334 error code?
The most common causes of P0334 include: Damage to knock sensor B wiring harness; Poor contact in the sensor connector; Knock Sensor B Malfunction; Sensor circuit grounding problems.
How do I fix a P0334 diagnostic trouble code?
To fix P0334: Check the integrity of the knock sensor B wiring harness. Clean and check the contacts in the sensor connector. Replace knock sensor B if necessary. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P0334?
Limited driving only, diagnose soon
How much does it cost to fix P0334?
The estimated repair cost for P0334 is $56–167. Actual cost depends on your vehicle, location, and labor rates.
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