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What is the ECM?
The ECM regulates four main parts of your vehicle engine's operating systems: air-fuel ratio, idle speed, variable valve timing, and ignition timing. In terms of the air-fuel ratio, the ECM uses sensors to regulate the oxygen to fuel ratio detected in your car’s exhaust to detect an engine rich/lean reading. Some of these sensors include the mass airflow sensor(s), the oxygen sensor(s), air-fuel sensor(s). For the idle speed, the ECM relies on sensors located by the crankshaft and camshaft(s) that track your vehicle’s RPM and engine load by monitoring the speed of rotation of the engine. The variable valve timing system controls when the valves are opened in the engine to either increase power or fuel economy.
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Fuel Pump
4BT / 6BT Engine Parts
Fuel Injector
K19 / K38 / K50 Engine Parts
Turbocharger
NT855 / N14 Engine Parts
Cylinder Head
6L / ISL / QSL8.9 Engine Parts
Crankshaft
ISF2.8 / ISF3.8 / ISG Engine Parts
Camshaft
ISBe / ISDe / QSB Engine Parts
Engine Block
6CT / ISC / QSC8.3 Engine Parts
Engine Assembly
ISM / QSM / M11 / L10 Engine Parts
Generator Set
QSX15 / ISX15 Engine Parts
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