P2C7A
SCR NOx Catalyst Efficiency Below Threshold Bank 1 Catalyst 2
P2C7A is an OBD-II diagnostic trouble code meaning: SCR NOx Catalyst Efficiency Below Threshold Bank 1 Catalyst 2. Common causes: contaminated or damaged scr catalytic converter, poor quality or lack of adblue reagent. Estimated repair cost: $39–278.
Symptoms
- Check Engine light comes on
- Increased fuel consumption
- Reduced engine power
- Possible ammonia smell from the exhaust system
- Errors related to the SCR system
Causes
- Contaminated or damaged SCR catalytic converter
- Poor quality or lack of AdBlue reagent
- NOx sensor malfunction
- Problems with the urea dosing module
- Clogged SCR system injectors
How to Fix
- Check the level and quality of AdBlue reagent
- Carry out diagnostics of NOx sensors
- Clean or replace SCR catalytic converter
- Check and, if necessary, replace the urea dosing module
- Clean or replace SCR system injectors
Related codes
Error P2C7A by Vehicle Brand
FAQ
What does the P2C7A code mean?
P2C7A is an OBD-II diagnostic trouble code that indicates: SCR NOx Catalyst Efficiency Below Threshold Bank 1 Catalyst 2
What causes a P2C7A error code?
The most common causes of P2C7A include: Contaminated or damaged SCR catalytic converter; Poor quality or lack of AdBlue reagent; NOx sensor malfunction; Problems with the urea dosing module.
How do I fix a P2C7A diagnostic trouble code?
To fix P2C7A: Check the level and quality of AdBlue reagent. Carry out diagnostics of NOx sensors. Clean or replace SCR catalytic converter. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P2C7A?
Yes, but get it checked soon
How much does it cost to fix P2C7A?
The estimated repair cost for P2C7A is $39–278. Actual cost depends on your vehicle, location, and labor rates.
See also: Russian version · NationStat