P127A MINI - Nitrogen Oxide Sensor Overrun Test NOx Signal Too High
- Faulty Nitrogen Oxide Sensor (NOx)
- Nitrogen Oxide Sensor (NOx) harness is open or shorted
- Nitrogen Oxide Sensor (NOx) circuit poor electrical connection
- Engine Light ON (or Service Engine Soon Warning Light)
P127a Mini DescriptionThe Engine Control Module (ECM) monitors the Nitrogen Oxide Sensor (NOx). The ECM sets the OBDII code when the Nitrogen Oxide Sensor (NOx) is not to factory specifications.
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