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Home >> Audi >> 1994 >> 90 CS Quattro >> Repair and Diagnosis (Single Page) >> Engine Performance >> Theory and Operation >> Engine Controls - Theory & Operation >> Computerized Engine Controls >> Output Signals >> Fuel Injectors

Fuel Injectors

Battery voltage is supplied to injectors via a 12-amp circuit breaker located in the electronic control box (above MFI ECM).

Power supplied to injectors does not use external resistors. Due to sequential fuel injection, a separate power output stage is provided for each injector.

MFI ECM controls opening time of injectors by supplying a ground for each injector.

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