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Home >> Audi >> 2001 >> S4 Quattro, Standard >> Repair and Diagnosis (Single Page) >> Engine Performance >> Theory and Operation >> Engine Controls - Theory & Operation >> Computerized Engine Controls >> Input Devices >> Notes
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Input Devices: Notes

NOTE: Components are grouped into 2 categories: input (sensor) devices and output (actuator) signals. INPUT DEVICES  are components that control or produce voltage signals monitored by ECM. OUTPUT SIGNALS  are components controlled by ECM.
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