P20E6
Reductant Injection Air Pressure Too Low
P20E6 is an OBD-II diagnostic trouble code meaning: Reductant Injection Air Pressure Too Low. Common causes: air leak in adblue injection system, air pressure compressor malfunction. Estimated repair cost: $17–89.
Symptoms
- Check Engine light comes on
- Reduced engine power
- Increased fuel consumption
- Possible transition to emergency mode
- SCR error message on dashboard
Causes
- Air leak in AdBlue injection system
- Air pressure compressor malfunction
- Clogged SCR system air filter
- Problems with the air pressure sensor
- Pressure control valve malfunction
How to Fix
- Check the system for air leaks
- Diagnose air pressure compressor
- Check and, if necessary, replace the SCR air filter
- Check the air pressure sensor readings
- Check the operation of the pressure control valve
Related codes
Error P20E6 by Vehicle Brand
FAQ
What does the P20E6 code mean?
P20E6 is an OBD-II diagnostic trouble code that indicates: Reductant Injection Air Pressure Too Low
What causes a P20E6 error code?
The most common causes of P20E6 include: Air leak in AdBlue injection system; Air pressure compressor malfunction; Clogged SCR system air filter; Problems with the air pressure sensor.
How do I fix a P20E6 diagnostic trouble code?
To fix P20E6: Check the system for air leaks. Diagnose air pressure compressor. Check and, if necessary, replace the SCR air filter. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P20E6?
Yes, but get it checked soon
How much does it cost to fix P20E6?
The estimated repair cost for P20E6 is $17–89. Actual cost depends on your vehicle, location, and labor rates.
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