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P0325: Knock Sensor 1 Circuit (Bank 1 or Single Sensor)
Severity: Low Usually safe to keep driving, but get it checked.
What does P0325 mean?
There is a fault in the knock sensor circuit. The knock sensor listens for detonation so the computer can retard timing.
Generic OBD-II definition: Knock Sensor 1 Circuit (Bank 1 or Single Sensor). Confirm applicability in your vehicle service information.
Common causes
- Faulty knock sensor
- Damaged wiring (often under the intake)
- Corroded connector
Symptoms
- Reduced power
- Slightly lower fuel economy
Can I keep driving with P0325?
Severity: Low Usually safe to keep driving, but get it checked.
If the check engine light is flashing or the car runs badly, stop driving and have it checked.
Typical fixes
- Inspect wiring
- Test sensor
- Replace sensor