Fuel rail Pressure sensor P0193 on 2007 Volkswagen Golf TDI

Hi I checked the fuel rail pressure sensor on connector with a multimeter but the reading is fine 5v supply, linear signal volt output and sensor ground its all fine but I still ordered a new sensor by chance and changed it and since then the car is running perfect and the fault code is gone.
so how can I do another test to know if the sensor is faulty or not because after fitting the new one the output volts readings are exactly the same as the old one so If it is another test to do please let me know how to carry it out ?

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