What usually causes it
- A failed knock sensor
- A damaged wire or a loose plug
- A loose sensor mount
- A fault in the engine computer, which is not common
P0327Starts at: OK to drive, fix when convenient
Knock sensor signal is too low (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 lower than it should be.
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 P0327 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 P0327
What does P0327 mean?
Knock sensor signal is too low (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 lower than it should be.
Can I keep driving with P0327?
We rate P0327 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 P0327?
The most common causes, in order: A failed knock sensor; A damaged wire or a loose plug; A loose sensor mount; 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.