OBD Guide

P0452

EVAP System Pressure Sensor/Switch A Circuit Low

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$56–167 (est.)

Symptoms

  • Check Engine Light Is On
  • Increased fuel consumption
  • Smell of gasoline in the cabin

Causes

  • EVAP pressure sensor malfunction
  • Open or short circuit in wiring harness
  • EVAP system leak
  • EVAP solenoid valve problems

How to Fix

  1. Check EVAP pressure sensor
  2. Inspect the wiring harness for damage
  3. Check EVAP system for leaks
  4. Replace faulty components

Related codes

Error P0452 by Vehicle Brand