P0330 on Hyundai
Knock Sensor 2 Circuit (Bank 2)
P0330 on Hyundai vehicles indicates knock sensor 2 circuit (bank 2). Au7o has documented this code across 1 Hyundai model — most commonly on Veloster. This powertrain code means the engine computer detected a malfunction in the circuit for knock sensor 2, located on engine bank 2 (the cylinder bank not containing cylinder 1). The knock sensor listens for engine 'knock' or 'ping' (abnormal combustion) and lets the computer retard ignition timing to prevent engine damage. This code indicates an electrical/circuit problem with the sensor signal, not necessarily actual knocking. Drivability is often normal, but the engine may run with conservative timing, reducing power and economy and risking damage if real knock occurs. Typical repair costs on Hyundai range from $200 to $1,200, depending on the specific model and root cause.
Common Causes of P0330
- •Faulty knock sensor on bank 2
- •Damaged or corroded knock sensor wiring/connector
- •Open or short in the knock sensor circuit
- •Loose or improperly torqued knock sensor
- •Engine ground or shielding issues affecting the signal
- •Faulty engine control module (rare)
P0330 on Hyundai by Model
Hyundai Veloster(1 issue)
- Knock Sensor / Engine Protection Logic Triggering Reduced Power and Check-Engine Light on 2.0L Models2019-2021
Some naturally aspirated 2.0L Veloster owners report check-engine lights, rough running, and reduced-power behavior tied to knock sensor activity or engine protection logic. While not as notorious as older Hyundai engine campaigns, the symptom pattern is documented enough to appear in owner complaints and service discussions: the car may suddenly feel flat, limit RPM, or illuminate the MIL even when no obvious mechanical noise is present. In some cases the issue is sensor-related; in others it requires ruling out genuine detonation, wiring faults, or software sensitivity.
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What does P0330 mean on Hyundai?▼
P0330 stands for "Knock Sensor 2 Circuit (Bank 2)." This powertrain code means the engine computer detected a malfunction in the circuit for knock sensor 2, located on engine bank 2 (the cylinder bank not containing cylinder 1). The knock sensor listens for engine 'knock' or 'ping' (abnormal combustion) and lets the computer retard ignition timing to prevent engine damage. This code indicates an electrical/circuit problem with the sensor signal, not necessarily actual knocking. Drivability is often normal, but the engine may run with conservative timing, reducing power and economy and risking damage if real knock occurs. On Hyundai specifically, this code is documented across 1 model.
What causes P0330 on Hyundai vehicles?▼
Common causes on Hyundai: Faulty knock sensor on bank 2, Damaged or corroded knock sensor wiring/connector, Open or short in the knock sensor circuit, Loose or improperly torqued knock sensor, Engine ground or shielding issues affecting the signal. Specific causes vary by model and year — see the per-model sections below.
How much does it cost to fix P0330 on a Hyundai?▼
Repair costs on Hyundai range from $200 to $1,200, depending on the specific model and root cause.
Which Hyundai models have P0330 documented?▼
Au7o has documented P0330 on 1 Hyundai model: Veloster.