S6 Quattro Sedan V10-5.2L (BXA) (2007)
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Switch the ignition on.
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Using a multimeter, check the Low Fuel Pressure Sensor (G410) electrical harness connector for voltage.
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Switch the ignition off.
If the specified values are obtained:
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Replace the Low Fuel Pressure Sensor (G410).
If the specified values are not obtained:
Checking wiring