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Home >> Chevrolet >> 1987 >> Spectrum Base, 2D Hatchback, Automatic >> Repair and Diagnosis >> Engine Performance >> System >> Early Fuel Evaporation System >> Description

Early Fuel Evaporation System: Description

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The Early Fuel Evaporation (EFE) system includes the EFE heater, Electronic Control Module (ECM), coolant temperature sensor and EFE relay. The EFE heater, located in the carburetor base gasket, has a ceramic ring located below the carburetor primary bore. The EFE heats incoming fuel/air to improve vaporization.