Hi
Currently I have Volvo XC60 2014 D4 with and P2000 fault which is "NOX Trap Efficiency Below Threshold". as the car is High in Milage, would I be correct the NOX sensor is possible the fault? and may require replacement?
If this is the case where is its location "pre or post DPF"?
also Is there a requirement for calibration procedure for new NOX sensor?
or is it worth an attempt to clean the sensor?
P2000 Error NOX sensor
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