Faulty O2 Sensor
O2 Sensor harness is open or shorted
O2 Sensor circuit poor electrical connection
Engine Light ON (or Service Engine Soon Warning Light)
Linear Oxygen Sensor Reference Voltage Open Circuit is the generic description for the P1181 Audi code, but the manufacturer may have a different description for your model and year vehicle. Currently, we have no further information
about the P1181 Audi OBDII code.