Nitrogen Oxide Sensor Linear Oxygen Sensor Line Disconnection
Table of contents
P121E MINI Possible Causes
- Faulty Nitrogen Oxide (NOx) Sensor Linear Oxygen Sensor
- Nitrogen Oxide (NOx) Sensor Linear Oxygen Sensor harness is open or shorted
- Nitrogen Oxide (NOx) Sensor Linear Oxygen Sensor circuit poor electrical connection
How do I fix code P121E MINI?
Check the “Possible Causes” listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector’s pins.
Cost of diagnosing the P121E MINI code
The cost of diagnosing the P121E MINI code is 1.0 hour of labor. The auto repair labor rates vary by location, your vehicle’s make and model, and even your engine type. Most auto repairs shops charge between $75 and $150 per hour.
Possible Symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
P121E MINI Description
The Engine Control Module (ECM) monitors the Nitrogen Oxide (NOx) Sensor Linear Oxygen Sensor. The ECM sets the OBDII code when the Nitrogen Oxide Sensor Linear Oxygen Sensor is not to factory specifications.