P1327
Knock Sensor 2 Low Input
Severity
⚠️ MediumCan you drive?
Limited driving only, diagnose soon
Approx. repair cost
$17–56 (est.)
Symptoms
- Reduced engine power
- Increased fuel consumption
- Detonation knocks during acceleration
- Check Engine Light Illuminates
- Unstable engine idling
Causes
- Knock sensor malfunction
- Open or short circuit in the sensor circuit
- Poor contact in the sensor connector
- Wiring harness damage
- Problems with the engine control unit (ECU)
How to Fix
- Check the integrity of the sensor wiring and connectors
- Test the resistance of the knock sensor
- Check the voltage in the sensor circuit
- Replace knock sensor if necessary
- Reset the error code and check if it returns