OBD-II code · Powertrain (generic)
P0330 Knock Sensor 2 Circuit (Bank 2)
A general electrical fault in the bank 2 knock sensor circuit. The ECU monitors a piezoelectric sensor for engine vibration patterns associated with detonation; an open, shorted, or out-of-range circuit triggers this code.
Is it safe to drive with P0330?
Usually safe for short trips, but don’t ignore it: the underlying fault can get more expensive over time.
Common causes
- Most likelyKnock sensor failed
- PossibleWiring/connector fault
Symptoms
- Check engine light on
- Power loss from defensive spark retard
- Increased fuel consumption
- Possible audible pinging under load
Repair at a glance
- Difficulty
- Hard
- DIY friendly
- Best left to a mechanic
- Typical labour
- 1–6 h
- Emissions test
- Likely to fail
- After the fix
- A drive cycle is needed before the light stays off
- Parts involved
- Knock Sensor, Sensor Wiring
Related codes
- P0325Knock Sensor 1 Circuit Malfunction (Bank 1)
- P032DKnock/Combustion Vibration Sensor C Circuit High
- P032EKnock/Combustion Vibration Sensor C Circuit Intermittent
- P032FCombustion Engine Producing Insufficient Torque
- P0331Knock/Combustion Vibration Sensor B Circuit Range/Performance
- P0332Knock Sensor 2 Circuit Low Input (Bank 2)
- P0333Knock Sensor 2 Circuit High Input (Bank 2)
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.