OBD Guide

P2424

HC Adsorption Catalyst Efficiency Below Threshold Bank 2

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$56–278 (est.)

Symptoms

  • Check Engine light comes on
  • Increased fuel consumption
  • Reduced engine power
  • Unusual odors from the exhaust system
  • Dips during acceleration

Causes

  • Worn or damaged catalytic converter
  • Malfunction of oxygen sensors
  • Leaks in the exhaust system
  • Problems with the fuel system
  • Mechanical damage to the catalyst

How to Fix

  1. Check the condition of the catalytic converter
  2. Diagnose the operation of oxygen sensors
  3. Check the exhaust system for leaks
  4. Carry out computer diagnostics of the engine
  5. If necessary, replace the catalyst

Related codes

Error P2424 by Vehicle Brand