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Home >> Toyota >> 1991 >> Tercel Base, C140 >> Repair and Diagnosis >> Engine Performance >> Theory and Operation >> Engine Controls - Theory & Operation >> Fuel System >> Fuel Control >> EFI Main Relay

EFI Main Relay

The EFI main relay is activated by turning on the ignition switch. The EFI main relay provides battery voltage to terminals +B and +B1 of ECU.

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