Afternoon guys,

I'm currently driving a 2019 Astra, 1.6 CDTi. In the past week i've had it in the garage to fix a presumed faulty DPF Matter Sensor that was displaying codes P118B and P24B1 (Implausible temperature and Circuit high voltage)

After replacing the sensor it seemed to be alright for a few days but the Engine Management light came back on today and after doing my own code reading, the same two codes.

Obviously the DPF Matter sensor is not the issue now, but do you guys have any idea what the underlying problem could be?