P2427

EGR Cooling Valve Control Circuit High

Severity

⚠️ Medium

Can you drive?

Yes, but get it checked soon

Approx. repair cost

$28–89 (est.)

Symptoms

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

Causes

Short circuit to positive in the control circuit
EGR cooling valve malfunction
Broken or damaged wiring
Connector problems or contact corrosion
Engine control unit malfunction

How to Fix

Check the integrity of the wiring and connectors in the control circuit
Measure the resistance of the EGR cooling valve
Check voltage at valve connector
Test valve operation using a diagnostic scanner
If necessary, replace the EGR cooling valve

Related codes

P2428 P2429 P2430