P043E

EVAP System Leak Detection Reference Orifice Low Flow

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$22–167 (est.)

Symptoms

Check Engine Light Is On
Slight reduction in engine efficiency
Smell of gasoline in or around the car

Causes

EVAP reference hole clogged
EVAP solenoid valve malfunction
EVAP system leak
Damage to the EVAP system wiring harness
EVAP system pressure sensor malfunction

How to Fix

Check the EVAP system wiring harness and connectors for damage.
Check the EVAP system solenoid valve for operation.
Clean or replace EVAP system reference hole
Check the EVAP system for leaks (smoke test)
If necessary, replace faulty EVAP system components

Related codes

P0440 P0442 P0455 P0456