Karl is a Senior Editor at CarBuzz and first joined the company as a freelancer in 2019. After graduating as a copywriter and studying journalism, his early work life included stints in television ...

Knock sensors are devices used in internal combustion engines to detect engine knock or detonation. The knock sensor detects vibrations and sends a signal to the engine control module (ECM), to ...

The engine’s knock sensor (or sensors) detects preignition and detonation, potentially damaging forms of abnormal combustion. Though full-blown knocking and pinging are audible to the human ear, the ...

This article applies to the Porsche 993 (1993-1998). Engine knock occurs when the air/fuel mixture in the cylinder does not combust correctly when the spark plugs are ignited, causing pockets of the ...