OBD Guide

P04F0

EVAP System High Load Purge Line A Performance

P04F0 is an OBD-II diagnostic trouble code meaning: EVAP System High Load Purge Line A Performance. Common causes: purge tubes are clogged, purge solenoid valve malfunction. Estimated repair cost: $33–111.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$33–111 (est.)

Symptoms

  • Check Engine light comes on
  • Slight deterioration in fuel consumption
  • The smell of gasoline in the cabin or near the car

Causes

  • Purge tubes are clogged
  • Purge solenoid valve malfunction
  • Damage or leakage in the EVAP system
  • Problems with the fuel tank pressure sensor

How to Fix

  1. Check the EVAP system for leaks
  2. Inspect and clean purge tubes
  3. Check the operation of the purge solenoid valve
  4. Scan the system for other errors

Related codes

Error P04F0 by Vehicle Brand

FAQ

What does the P04F0 code mean?

P04F0 is an OBD-II diagnostic trouble code that indicates: EVAP System High Load Purge Line A Performance

What causes a P04F0 error code?

The most common causes of P04F0 include: Purge tubes are clogged; Purge solenoid valve malfunction; Damage or leakage in the EVAP system; Problems with the fuel tank pressure sensor.

How do I fix a P04F0 diagnostic trouble code?

To fix P04F0: Check the EVAP system for leaks. Inspect and clean purge tubes. Check the operation of the purge solenoid valve. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P04F0?

Limited driving only, diagnose soon

How much does it cost to fix P04F0?

The estimated repair cost for P04F0 is $33–111. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat