OBD Guide

P28C3

EVAP System High Load Purge Line B Performance

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$6–56 (est.)

Symptoms

  • Check Engine light comes on
  • Increased fuel consumption
  • Difficulty starting the engine
  • I can smell gasoline
  • Unstable engine operation at idle

Causes

  • EVAP purge line B clogged
  • Purge solenoid valve malfunction
  • EVAP system leak
  • Problems with the fuel tank pressure sensor
  • Open or short circuit in control circuit

How to Fix

  1. Check the EVAP system for leaks
  2. Diagnose the purge solenoid valve
  3. Check the condition of pipes and connections
  4. Clean purge line B
  5. Check the fuel tank pressure sensor readings

Related codes

Error P28C3 by Vehicle Brand