P20D8

Symptoms

• Increased fuel consumption
• Reduced engine power
• Check Engine Light Illuminates
• Increased emissions
• Problems with diesel particulate filter regeneration

Causes

• Malfunction of the fuel injection nozzle into the aftertreatment system
• Problems with the aftertreatment fuel pump
• Clogged fuel lines of the aftertreatment system
• Malfunction of sensors of the after-treatment system
• Problems with the electronic control unit

How to Fix

1. Check the operation of the fuel injection nozzle into the aftertreatment system
2. Diagnose the fuel pump of the aftertreatment system
3. Check the condition of the fuel lines of the aftertreatment system
4. Test the sensors of the aftertreatment system
5. Check the operation of the electronic control unit

Related codes

Error P20D8 by Vehicle Brand