P0330 Knock Sensor 2 Circuit Malfunction (Bank 2)

Description and meaning of DTC p0330

This diagnostic trouble code (DTC) is a generic powertrain code, which means that it applies to OBD-II equipped vehicles. Although generic, the specific repair steps may vary depending on make/model. A knock sensor tells the engine computerwhen one or more of your engine's cylinders are "knocking", that is,exploding the air/fuel mixture in a way that delivers less power and can bedamaging to the engine if prolonged. The computer uses this information to tunethe engine so that it doesn't knock. If your knocksensor wasn't operating properly, so that it was always indicating a knock,the engine computer's response may have been to change the ignition timing onyour engine. Knock sensors generally boltinto or thread into the engine block. This P0330 code may showup intermittently or the Service Engine light may be lit constantly. Other knock sensor related DTC codes include P0325.

p0330 diagnostic trouble code symptoms

You may notice drivability problems including a lack of power and perhaps somehesitation. There may also be other symptoms.

DTC p0330 - possible causes

A code P0330 most likely means one or more of the followinghas happened:The "B" knock sensor is faulty and needs tobe replacedThere is a wiring short/fault in the knocksensor circuit

How to fix OBD-II diagnostic trouble code p0330

Check the resistance of the knock sensor on bank 2(compare it to factory specs)Check for broken/frayed wires leading to the sensorReplace the knock sensor on bank 2Sources: W. Farmer - Nissan

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