P23E8

EGR C Flow Excessive Detected

Severity

⚠️ Medium

Can you drive?

Yes, but get it checked soon

Approx. repair cost

$33–167 (est.)

Symptoms

Rough engine idling
Engine power drop
Increased fuel consumption
Jerking when accelerating
Check Engine Light Is On

Causes

EGR valve stuck open
EGR valve position sensor malfunction
Open or short circuit in the EGR valve control circuit
Dirty or clogged EGR system
ECU software error

How to Fix

Check the operation of the EGR valve
Check the condition and resistance of the EGR valve control circuit
Clean the EGR system from carbon deposits and deposits
Check the serviceability of the EGR valve position sensor
If necessary, replace the EGR valve

Related codes

P0401 P0402 P0403