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Code
P0411
Emissions

حقن هواء ثانوي — تدفق غير صحيح

حقن الهواء الثانوي لا يوفر التدفق الصحيح.

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Most likely causes

  1. مضخة هواء معطلة
  2. صمام يسرّب

Symptoms you may notice

  • Check engine light
  • Failed emissions test

Checks to run

  1. Verify the air pump runs at cold start
  2. Inspect check valves
  3. Check the fuses

Tools you may need

Multimeter
Always diagnose before replacing. Codes share symptoms; confirm the cause with measurements before buying parts.

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