P23E4

EGR C Control Circuit High

Severity

⚠️ Medium

Can you drive?

Yes, but get it checked soon

Approx. repair cost

$17–89 (est.)

Symptoms

Check Engine light comes on
Reduced engine power
Unstable idling
Increased fuel consumption
Dips during acceleration

Causes

Short circuit to positive in the EGR control circuit
EGR solenoid valve malfunction
Broken or damaged wiring harness
Connector problems or contact corrosion
Malfunction of the engine control unit (rare)

How to Fix

Check the integrity of the wiring harness and connectors
Measure EGR valve resistance
Check control circuit voltage
Replace faulty EGR valve if necessary
Reset the error code and check the system

Related codes

P0401 P0403 P0404