Engine Error
P0329
Knock Sensor 1 Circuit Input Intermittent (Bank 1)
Severity
Medium
Symptoms
Intermittent power loss, check engine light flashes then stays solid
Common Causes
- Loose electrical connection to knock sensor
- Frayed wiring shorting to engine block
- Failing knock sensor
- Moisture in the sensor connector
How to Fix
- 1 Clean and secure the connector
- 2 Repair and heat-shield wiring harness
- 3 Replace knock sensor
- 4 Seal connector with dielectric grease
Estimated Repair Cost
USD
$80
–
$350
Wiring repair: 100; Sensor replacement: 150 - 350