P20E7
Reductant Injection Air Pressure Too High
P20E7 is an OBD-II diagnostic trouble code meaning: Reductant Injection Air Pressure Too High. Common causes: clogged air channels of the reagent injection system, air pressure control valve malfunction. Estimated repair cost: $17–89.
Symptoms
- Check Engine light comes on
- Reduced engine power
- Increased fuel consumption
- Unpleasant exhaust smell
- SCR System Error Message
Causes
- Clogged air channels of the reagent injection system
- Air pressure control valve malfunction
- Damage or leakage in air lines
- Air pressure sensor malfunction
- Problems with the engine control unit (ECU)
How to Fix
- Check air lines for leaks and damage
- Clear or replace clogged air passages
- Check the operation of the air pressure control valve
- Check the air pressure sensor and its connection
- Scan the system for other errors
Related codes
Error P20E7 by Vehicle Brand
FAQ
What does the P20E7 code mean?
P20E7 is an OBD-II diagnostic trouble code that indicates: Reductant Injection Air Pressure Too High
What causes a P20E7 error code?
The most common causes of P20E7 include: Clogged air channels of the reagent injection system; Air pressure control valve malfunction; Damage or leakage in air lines; Air pressure sensor malfunction.
How do I fix a P20E7 diagnostic trouble code?
To fix P20E7: Check air lines for leaks and damage. Clear or replace clogged air passages. Check the operation of the air pressure control valve. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P20E7?
Yes, but get it checked soon
How much does it cost to fix P20E7?
The estimated repair cost for P20E7 is $17–89. Actual cost depends on your vehicle, location, and labor rates.
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