P20D5
Exhaust Aftertreatment Fuel Injector B Stuck Open
P20D5 is an OBD-II diagnostic trouble code meaning: Exhaust Aftertreatment Fuel Injector B Stuck Open. Common causes: mechanical jamming of the injector, nozzle contamination. Estimated repair cost: $56–167.
Symptoms
- Increased urea/reagent consumption
- Check engine light comes on
- Reduced efficiency of the exhaust gas cleaning system
- The engine may go into emergency mode
- Increased emissions
Causes
- Mechanical jamming of the injector
- Nozzle contamination
- Problems with the electrical control circuit
- Engine control unit malfunction
- Damage to the wiring harness to the injector
How to Fix
- Check the condition of the fuel injector of the exhaust gas cleaning system
- Clean or replace a stuck injector
- Check the injector control circuit
- Check connections and wiring harness
- If necessary, replace the control unit
Related codes
Error P20D5 by Vehicle Brand
FAQ
What does the P20D5 code mean?
P20D5 is an OBD-II diagnostic trouble code that indicates: Exhaust Aftertreatment Fuel Injector B Stuck Open
What causes a P20D5 error code?
The most common causes of P20D5 include: Mechanical jamming of the injector; Nozzle contamination; Problems with the electrical control circuit; Engine control unit malfunction.
How do I fix a P20D5 diagnostic trouble code?
To fix P20D5: Check the condition of the fuel injector of the exhaust gas cleaning system. Clean or replace a stuck injector. Check the injector control circuit. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P20D5?
Limited driving only, diagnose soon
How much does it cost to fix P20D5?
The estimated repair cost for P20D5 is $56–167. Actual cost depends on your vehicle, location, and labor rates.
See also: Russian version · NationStat