P20D0

Exhaust Aftertreatment Fuel Injector A Stuck Closed

Severity

⚠️ Medium

Can you drive?

Yes, but get it checked soon

Approx. repair cost

$56–167 (est.)

Symptoms

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

Causes

Mechanical jamming of the injector
Dirty or clogged injector
Problems with electrical wiring to the injector
Engine control unit malfunction
Low fuel quality

How to Fix

Check the electrical wiring and connectors of the injector
Clean or replace fuel injector
Check the pressure in the fuel system
Test the operation of the injector using diagnostic equipment
If necessary, replace the injector

Related codes

P20D1 P20D2 P20E0