OBD Guide

P24B8

EVAP System Leak Detection Pump Pressure Sensor Circuit

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$17–56 (est.)

Symptoms

  • Check Engine Light Is On
  • Increased fuel consumption
  • The smell of gasoline near the car
  • Unstable engine idling
  • Dips during acceleration

Causes

  • Open or short circuit in the sensor circuit
  • Faulty EVAP pump pressure sensor
  • Problems with the wiring harness or connectors
  • Leak detection pump malfunction
  • Bad contacts in the electrical circuit

How to Fix

  1. Check the integrity of wiring and connectors
  2. Check the resistance of the pressure sensor
  3. Check power and ground at the sensor connector
  4. Replace EVAP pump pressure sensor if necessary
  5. Check the operation of the leak detection pump

Related codes

Error P24B8 by Vehicle Brand