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Volvo engine code DTC P225E
NOx Sensor #2: Emission Threshold The rationality check for this sensor consists of sensor stuck low and stuck high check. It is performed whenever the engine operates on highly transient conditions. A fault condition is reached whenever the NOx sensor values are below or above a fault limit. P225E NOx Sensor #2: Rationality High Monitor DTC P225E Component / System NOx Sensor #2 - Rationality high Monitor Strategy Description Sensor Rationality Check Fault Limit NOX Sensor Value > 125 ppm Enable Conditions • Fueling Amount < 0.001 g/sec • SCR Temperature 150 - 500 °C • SCR Temperature Stability < 0.2 °C/sec • Engine Torque < 1000 Nm Disable Conditions No Active DTC's: • P225D, P0400, P0402, P225F, P242A, P0421, P2201, P225C, P221A Time Required For DTC To Be Set 5 seconds MIL Illumination 2 Drive Cycles