Engine-Codes - Bmw - P127A BMW

P127A BMW - Nitrogen Oxide Sensor Overrun Test NOx Signal Too High

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3  What is this?
Table of contents

P127A BMW Possible Causes

  • Faulty Nitrogen Oxide Sensor (NOx)
  • Nitrogen Oxide Sensor (NOx) harness is open or shorted
  • Nitrogen Oxide Sensor (NOx) circuit poor electrical connection

How do I fix code P127A BMW?

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 P127A BMW code

Labor: 1.0

The cost of diagnosing the P127A BMW code is 1.0 hour of labor. The auto repair labor rates vary widely across the country, and even within the same city. Most auto repairs shops charge between $75 and $150 per hour.

Possible Symptoms

  • Engine Light ON (or Service Engine Soon Warning Light)

P127A BMW Meaning

The 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.

P127A BMW More Information

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