Question 1

What does P0325 mean?

Accepted Answer

P0325 - Knock Sensor 1 Circuit (Bank 1). Knock sensor on bank 1 not providing signal or out of range.

Question 2

What are the symptoms of P0325?

Accepted Answer

Check engine light, Engine may ping under load, PCM may retard timing (loss of power)

Question 3

What causes P0325?

Accepted Answer

Failed knock sensor, Loose knock sensor bolt, Wiring issue, Corroded connector, Engine noise interference

Question 4

How much does it cost to fix P0325?

Accepted Answer

Typical repair cost: $50-$400. On Toyota V6, knock sensor replacement requires intake manifold removal. On GM V8, sensors are under the intake. Make sure bolt is torqued to spec.

P0325 — Knock Sensor 1 Circuit (Bank 1)

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Common symptoms of P0325

Common causes of P0325

Repair cost & difficulty

Vehicles commonly affected

Related trouble codes