OBD Guide

P043E

EVAP System Leak Detection Reference Orifice Low Flow

P043E is an OBD-II diagnostic trouble code meaning: EVAP System Leak Detection Reference Orifice Low Flow. Common causes: evap reference hole clogged, evap solenoid valve malfunction. Estimated repair cost: $22–167.

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

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

Related codes

Error P043E by Vehicle Brand

FAQ

What does the P043E code mean?

P043E is an OBD-II diagnostic trouble code that indicates: EVAP System Leak Detection Reference Orifice Low Flow

What causes a P043E error code?

The most common causes of P043E include: EVAP reference hole clogged; EVAP solenoid valve malfunction; EVAP system leak; Damage to the EVAP system wiring harness.

How do I fix a P043E diagnostic trouble code?

To fix P043E: 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. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P043E?

Limited driving only, diagnose soon

How much does it cost to fix P043E?

The estimated repair cost for P043E is $22–167. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat