P0332 — Knock Sensor 2 Circuit Range/Performance (Bank 2)
Drive with caution — fix soon.
What P0332 means
This code means the bank 2 knock sensor signal is present but doesn't match what the computer expects, so its readings can't be fully trusted. It's commonly caused by a weak or aging knock sensor, wiring issues, or a sensor that isn't mounted tightly. The usual fix is replacing the knock sensor and checking the wiring and mounting, and it's typically a straightforward repair.
Common symptoms
- Check engine light is on
- Mild loss of power under acceleration
- Slightly reduced fuel economy
- Occasional pinging or knocking noise
- Engine feels less smooth at higher loads
Common causes
- Weak or aging knock sensor on bank 2
- Loose sensor mounting affecting the signal
- Damaged wiring or chafed harness
- Corroded or poor electrical connection
- Engine control module fault (uncommon)
Typical repair cost
$150 – $400
Varies by vehicle and root cause.
Frequently asked questions
Can I keep driving with a P0332 code?
Yes, in most cases you can drive normally for a while. The engine may run slightly more conservatively, but it's safe to get to a shop. Avoid heavy acceleration until it's fixed.
How much does it cost to fix a P0332 code?
Expect somewhere around $150 to $400. The part is cheap, but labor depends on how easy the sensor is to reach, since on some V-engines it's tucked under the intake.
Is a P0332 code serious?
It's moderate severity. The car won't stop running, but the computer can't rely on that sensor, which can slightly affect timing, power, and economy. It's best to repair it within a reasonable time.
What does range/performance mean for a knock sensor?
It means the sensor is producing a signal, but the value is off compared to what the computer expects. This often points to a weak sensor or a loose mounting rather than a completely dead sensor.