P126E - Nitrogen Oxide Sensor Trailing Throttle Check Binary Lambda Signal Too Rich

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3   
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Possible causes

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

Possible symptoms

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

P126e Description

The Engine Control Module (ECM) monitors the Nitrogen Oxide (NOx) Sensor. The ECM sets the OBDII code when the Nitrogen Oxide (NOx) Sensor is not to factory specifications.
OBDII Code P126e - Nitrogen Oxide Sensor Trailing Throttle Check Binary Lambda Signal Too Rich - AutoCodes.com

P126E Information for specific makes

  • P126E BMW Nitrogen Oxide Sensor Trailing Throttle Check Binary Lambda Signal Too Rich
  • P126E FORD Fuel Injector 5 Input Circuit Malfunction
  • P126E MINI Nitrogen Oxide Sensor Trailing Throttle Check Binary Lambda Signal Too Rich

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P126E Comments

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