OBD Guide

P24A6

EGR Cooler Bypass Control Stuck/Open Bank 2

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$33–167 (est.)

Symptoms

  • Check Engine light comes on
  • Reduced engine power
  • Unstable idling
  • Increased fuel consumption
  • Possible detonation during acceleration

Causes

  • EGR bypass valve mechanism jammed
  • Depressurization of the vacuum control system
  • Open or short circuit in valve control circuit
  • EGR system contamination with carbon deposits
  • Control solenoid valve malfunction

How to Fix

  1. Check the condition of the EGR bypass valve for mechanical damage
  2. Test the valve control circuit
  3. Check vacuum hoses and connections for leaks
  4. Clean or replace EGR cooler bypass valve
  5. If necessary, replace the EGR cooler assembly

Related codes

Error P24A6 by Vehicle Brand