P20CE

Exhaust Aftertreatment Fuel Injector A Control Circuit High

Severity

⚠️ Medium

Can you drive?

Yes, but get it checked soon

Approx. repair cost

$33–167 (est.)

Symptoms

Check Engine Light Is On
Engine performance deterioration
Increased fuel consumption
Problems with diesel particulate filter regeneration
Unstable idling

Causes

Short circuit in injector control circuit
Malfunction of the fuel injector of the exhaust gas cleaning system
Wiring harness damage
Problems with the engine control unit
Corrosion of electrical contacts

How to Fix

Check the integrity of the wiring harness to the injector
Measure the injector resistance
Check the voltage at the injector connector
Replace the faulty injector if necessary
Clean or replace damaged wires

Related codes

P20CD P20CF P20D0