P0334: Knock/Combustion Vibration Sensor B Circuit Intermittent
What to do
Expect occasional flat spots. Report that the fault is intermittent.
What this code means
Sensor B's signal is intermittent, completing the eleven knock control codes spanning P0324–P0334. Read as a group: a single sensor implicates that sensor or its mounting, both banks together implicate shared wiring or the module's knock input, and a performance code with an audible rattle implicates something loose rather than the sensor at all.
Likely causes
Start here
- Intermittent wiring fault · moderate
- Corroded or loose connector · easy
- Faulty knock sensor · moderate
Less common
- Incorrect knock sensor mounting torque · moderate
Symptoms
Components involved
Information, not instruction
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Have anything you intend to act on checked by a trained person against the manufacturer's own procedure for your vehicle. Nothing here replaces that procedure.
Community experience
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