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 Control Module (ECM) is the computer responsible for controlling the engine. The ECM communicates with other vehicle control units via a communication bus.

The Engine Control Module (ECM) of the affected Chevy Silverado units is incorrectly programmed, per Service Update N242452130. This could potentially lead to improper fuel flow rate during ...

GM has issued a service update for some units of the 2023-2024 GMC Sierra 1500 for an ECM fix to remedy improper fuel flow rate during certain types of driving.