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Home >> Chevrolet >> 2018 >> Suburban 3500 HD LT >> Repair and Diagnosis >> External Pages >> Different car >> Section 3 (Engine Controls And Fuel - 5.3L (L83) Or 6.2L (L86) - Description And Operation) >> Description And Operation >> Fuel System Description >> Fuel Metering Modes of Operation

Fuel Metering Modes of Operation

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The ECM monitors voltages from several sensors in order to determine how much fuel to give the engine. The ECM controls the amount of fuel delivered to the engine by changing the fuel injector pulse width. The fuel is delivered under one of several modes.