Cutlass Cruiser V8-307 5.0L VIN Y 4-bbl (1983)
Early Fuel Evaporation ( EFE ): Testing and Inspection
Chart C-9A EFE System Check (Electrically Heated Type)
Fig. 022 CHART C-9A EFE (ELECTRICALLY HEATED) CHECK
The electrically heated EFE--a wire grid heater mounted between the carburetor and intake manifold--is controlled by the ECM through the relay
ground.
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EFE grid receives +12 volts from the ignition ON circuit.
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The ECM energizes the relay by supplying a ground path.
