P043F

EVAP System Leak Detection Reference Orifice High Flow

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$56–167 (est.)

Symptoms

Check Engine light comes on
Deteriorating fuel economy
Smell of gasoline in the cabin

Causes

Reference hole clogged
EVAP solenoid valve malfunction
Wiring harness damage
EVAP system pressure sensor malfunction
Mechanical damage to EVAP system pipelines

How to Fix

Check the integrity of the EVAP system wiring harness
Check the condition of the reference hole for blockages
Check the operation of the EVAP solenoid valve
Check the EVAP system for leaks
If necessary, replace damaged components

Related codes

P0440 P0442 P0455 P0456