P24C4

EGR Cooler Bypass Position Sensor Exceeded Learning Limit Bank 1

Severity

⚠️ Medium

Can you drive?

Yes, but get it checked soon

Approx. repair cost

$17–89 (est.)

Symptoms

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

Causes

EGR bypass valve position sensor malfunction
Mechanical failure of the EGR valve
Dirty or clogged EGR system
Problems with the sensor electrical circuit
Engine control unit malfunction

How to Fix

EGR Bypass Valve Position Sensor Diagnosis
Cleaning or replacing the EGR valve
Checking the sensor electrical circuit
Resetting error codes and retraining the system
Engine control unit software update (if necessary)

Related codes

P24C5 P24C3 P0401