What is the Electronic Control Module? Also referred to as an engine control unit (ECU) or engine control module, it oversees the electrical system of the car, but focuses on engine performance.

Replace fuel injector (s), $424 (this repair is trending down from no. 7 last year) Replace thermostat, $239 Reprogram powertrain control module, $109 (new to the list this year) ...

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 ...