OBD Guide

P2BAE

NOx Exceedence - NOx control monitoring system

Severity
🔴 High
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$56–278 (est.)

Symptoms

  • Increased fuel consumption
  • Reduced engine power
  • Check Engine Light Illuminates
  • Unstable engine idling
  • Exhaust smell

Causes

  • NOx sensor malfunction
  • EGR system clogged
  • Malfunction of the catalytic converter
  • Problems with the AdBlue injection system
  • Use of low-quality fuel

How to Fix

  1. Check the status of NOx sensors
  2. Clean or replace the EGR system
  3. Check catalytic converter
  4. Diagnose the AdBlue injection system
  5. Replace the fuel filter and use high-quality fuel

Related codes

Error P2BAE by Vehicle Brand