P0332 Ford F-150
Knock Sensor 2 Circuit Low Input (Bank 2) · Powertrain Code · Medium · Repair: Moderate
What is P0332?
The knock sensor 2 on bank 2 is reading below expected voltage.
When the Ford F-150 triggers code P0332 (knock sensor 2 circuit low input (bank 2)), it typically points to an issue in the powertrain system. Below you'll find the most common causes, symptoms, and repair options specific to the Ford F-150.
This repair is rated moderate, meaning some experience and specialty tools required.
Diagnostic data on this page is compiled from publicly available repair resources and technical service bulletins. Always have a qualified mechanic confirm the diagnosis before authorizing repairs on your Ford F-150.
Common Causes on Ford F-150
- Failed knock sensor on bank 2 (V6 or V8 engines)
- Wiring harness damage between knock sensor and PCM
- Loose knock sensor mounting — incorrect torque after previous repair
- Cracked knock sensor from thermal stress
Symptoms
- Check engine light
- Reduced power (PCM reduces timing advance)
- Slightly worse fuel economy
- May notice pinging on low-octane fuel
Notes for Ford F-150
On EcoBoost engines, using 87 octane when 91 is recommended can trigger knock sensor codes — try premium fuel before replacing the sensor.