How does the ECM work on a Chevy Silverado?
How does the ECM work on a Chevy Silverado? The ECM takes all of the data from the various sensors, and uses it to operate the engine in a way that is significantly more efficient than traditionally controlled engines. It uses the data from the oxygen sensors, camshaft sensor (s), mass airflow sensor, knock sensors, and much much more to make constant adjustments to the engine. What happens when an engine has a bad ECM? An engine with a bad ECM will often run rough and misfire. The misfire can come or go depending on what is going on with...