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Home >> Audi >> 2014 >> S7 >> Repair and Diagnosis (Single Page) >> Engine Performance >> Engine Control Systems >> 4.0L - Generic Scan Tool - Engine Code(S): CEUC & CRDB (Transmission DTC Table & Diagnostic Procedures) >> St Generic Scan Tool >> Diagnosis And Testing >> Diagnostic Procedures >> Low Fuel Pressure Sensor -G410-, CHECKING >> Function

Low Fuel Pressure Sensor -G410-, CHECKING: Function

Low-Side Fuel pressure is constantly measured by the Low Fuel Pressure Sensor -G410- and sent to the Engine Control Module -J623-. If this pressure deviates from the reference pressure, Engine Control Module -J623- sends a signal to the Fuel Pump Control Module -J538-. Fuel Pump Control Module -J538- then sends a PWM signal to the Transfer Fuel Pump -G6- until the desired fuel pressure is achieved.

Special tools and workshop equipment required 

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