P04F1

EVAP System Purge Line Performance

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$56–167 (est.)

Symptoms

Check Engine light comes on
Increased fuel consumption
Smell of fuel in the cabin
Problems starting the engine

Causes

Purge line clogged
Purge valve malfunction
EVAP system leak
Problems with fuel tank sealing
Fuel tank pressure sensor malfunction

How to Fix

Check the EVAP system for leaks
Inspect the purge line for blockages
Check the functionality of the purge valve
Replace faulty components
Clean or replace purge line

Related codes

P0440 P0442 P0455 P0456