Posts Tagged: check engine light knock sensor

Knock Sensor Code Explained: Causes, Diagnosis, and Repair

Common Causes of a Knock Sensor Code Quick Summary A knock sensor is your engine’s early-warning system against destructive combustion events like pre-ignition and detonation. When it works properly, it protects pistons, valves, and bearings by telling the computer exactly when knock occurs, so timing and fuel can be adjusted instantly. When a knock sensor code sets, the sensor itself is rarely the culprit—wiring issues, poor connections, or engine conditions that actually cause knock are far more common. Article How it Protects Your Engine (And Why It Matters) Carmakers didn’t … Read More