P20CC

Exhaust Aftertreatment Fuel Injector A Control Performance

Severity

⚠️ Medium

Can you drive?

Yes, but get it checked soon

Approx. repair cost

$56–167 (est.)

Symptoms

Increased NOx emissions
Check Engine Light Illuminates
Reduced engine power
SCR system error message on dashboard
Unusual sounds from the exhaust system

Causes

SCR injector malfunction
Clogged nozzle or reagent supply lines
Problems with injector wiring or connectors
Low level or poor quality of reagent (AdBlue)
SCR system control module malfunction

How to Fix

Check the level and quality of the reagent (AdBlue)
Inspect the SCR injector for blockage or damage.
Check the integrity of the electrical wiring and connectors of the injector
Test the operation of the injector using diagnostic equipment
If necessary, replace the SCR injector

Related codes

P20CD P20CE P20CF