P20E8
Reductant Pressure Too Low
P20E8 is an OBD-II diagnostic trouble code meaning: Reductant Pressure Too Low. Common causes: leak in the reducing agent injection system, reductant pump malfunction. Estimated repair cost: $39–278.
Symptoms
- Check Engine light comes on
- Reduced engine power
- Increased fuel consumption
- SCR error message on dashboard
- Unusual odors from the exhaust system
Causes
- Leak in the reducing agent injection system
- Reductant pump malfunction
- Reductant pressure sensor malfunction
- Dirty or clogged nozzle
- Problems with wiring harness or connections
How to Fix
- Check the system for reducing agent leaks
- Check the operation of the reducing agent pump
- Check pressure sensor readings
- Clean or replace the reducing agent injection nozzle
- Check electrical connections and wiring harness
Related codes
Error P20E8 by Vehicle Brand
FAQ
What does the P20E8 code mean?
P20E8 is an OBD-II diagnostic trouble code that indicates: Reductant Pressure Too Low
What causes a P20E8 error code?
The most common causes of P20E8 include: Leak in the reducing agent injection system; Reductant pump malfunction; Reductant pressure sensor malfunction; Dirty or clogged nozzle.
How do I fix a P20E8 diagnostic trouble code?
To fix P20E8: Check the system for reducing agent leaks. Check the operation of the reducing agent pump. Check pressure sensor readings. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P20E8?
Yes, but get it checked soon
How much does it cost to fix P20E8?
The estimated repair cost for P20E8 is $39–278. Actual cost depends on your vehicle, location, and labor rates.
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