Engine Error
P0326
Knock Sensor 1 Circuit Range/Performance (Bank 1)
Severity
Medium
Symptoms
Reduced engine power, check engine light, slight hesitation
Common Causes
- Knock sensor picking up false mechanical noise
- Defective knock sensor
- Over-tightened knock sensor
- Poor fuel quality causing actual knock
How to Fix
- 1 Inspect engine for loose brackets or rattles
- 2 Replace knock sensor and torque to spec
- 3 Fill tank with high-octane fuel
- 4 Test sensor wiring
Estimated Repair Cost
USD
$100
–
$400
Knock sensor replacement: 150 - 400