Check MyEngine Light
P0328Starts at: OK to drive, fix when convenient

Knock sensor signal is too high (bank 1)

Knock is a pinging sound when fuel burns at the wrong time, and the knock sensor listens for it. The signal from the sensor on bank 1, or the only one on the engine, is higher than it should be.

SensorsFix: Best left to a shop

What usually causes it

  1. A failed knock sensor
  2. A short in the wiring
  3. A loose part or engine noise that the sensor picks up
  4. A fault in the engine computer, which is not common

What to watch for

  • A pinging or rattling noise when you speed up
  • Less power than usual
  • A new knocking sound from deep in the engine

Can I keep driving?

We rate P0328 as OK to drive, fix when convenient, as a starting point. Keep an eye on the signs below. If the light starts flashing, stop driving soon.

Quick answers about P0328

What does P0328 mean?

Knock sensor signal is too high (bank 1). Knock is a pinging sound when fuel burns at the wrong time, and the knock sensor listens for it. The signal from the sensor on bank 1, or the only one on the engine, is higher than it should be.

Can I keep driving with P0328?

We rate P0328 as OK to drive, fix when convenient, as a starting point. Keep an eye on the signs below. If the light starts flashing, stop driving soon.

What usually causes P0328?

The most common causes, in order: A failed knock sensor; A short in the wiring; A loose part or engine noise that the sensor picks up; A fault in the engine computer, which is not common.

Estimates only. A mechanic should confirm. The same code can mean slightly different things on different cars; the app explains it for your exact year, make, model and mileage.