Learn all you need to know about Engine Control Modules (ECM), or Engine Control Units (ECU), in this article concering electronically controlled midget engines. Enginology is step one in the ...

Certain units of the 2023-2024 Chevy Silverado 1500 with the L3B engine are included in a Service Update with a fix for a fuel injector flow rate problem.

The engine control module, or ECM, controls plenty of functions during routine driving, so any issues with that part could cause severe problems.

The Engine Control Module (ECM) of the affected GMC Sierra units is incorrectly programmed, per Service Update N242452130.