OBD Guide

P23E2

EGR C Control Circuit Performance

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 engine idling
  • Increased fuel consumption
  • Dips during acceleration

Causes

  • Bank C EGR valve malfunction
  • Open or short circuit in control circuit
  • Problems with power or grounding of the circuit
  • Mechanical blockage of the EGR system
  • Engine control unit (ECU) malfunction

How to Fix

  1. Check the integrity of the EGR valve control circuit
  2. Check the resistance and operation of the EGR valve
  3. Clean or replace EGR valve if necessary
  4. Check circuit power and grounding
  5. If necessary, replace the engine control unit

Related codes

Error P23E2 by Vehicle Brand