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P043E – BMW DTC

BMW DTC P043E – EVAP System Leak Detection Reference Orifice Low Flow

DTC P043E meaning on BMW

DTC P043E on a BMW indicates an issue with the EVAP (Evaporative Emission Control System) System Leak Detection Reference Orifice. This code specifically points to low flow detected in the reference orifice of the EVAP system.

BMW DTC P043E symptoms

Symptoms of DTC P043E on a BMW may include:

  • Check Engine Light illuminated
  • Decreased fuel efficiency
  • Strong fuel odor near the vehicle

BMW DTC P043E causes

Common causes of DTC P043E on a BMW include:

  • Leaking or damaged EVAP system components
  • Clogged or restricted EVAP system hoses
  • Faulty EVAP system leak detection pump

BMW DTC P043E seriousness

While DTC P043E may not cause immediate drivability issues, it is important to address this code promptly to prevent potential damage to the EVAP system and ensure proper emissions control.

How to diagnose DTC P043E on BMW

To diagnose DTC P043E on a BMW, a mechanic may perform the following steps:

  1. Use a diagnostic scanner to retrieve the fault code
  2. Inspect the EVAP system components for leaks or damage
  3. Check the EVAP system hoses for blockages
  4. Test the EVAP system leak detection pump for proper operation

How to fix DTC P043E on BMW

To fix DTC P043E on a BMW, the following steps may be taken:

  1. Repair or replace any leaking or damaged EVAP system components
  2. Clean or replace clogged EVAP system hoses
  3. Replace the faulty EVAP system leak detection pump
  4. Clear the fault code and reset the Check Engine Light

How to erase DTC P043E on BMW

To erase DTC P043E on a BMW, the fault code can be cleared using a diagnostic scanner. After addressing the underlying issue causing the code, the scanner can be used to reset the Check Engine Light and clear the DTC from the vehicle’s memory.

Recommended tools & DTC Scanners for BMW

Best Diagnostic App for modern BMWs: BimmerLink

Recommended Bluetooth adapter for Bimmerlink: OBDLink CX

Cable adapter for Bimmerlink: Enet Cable USB Type C

For older BMWs we recommend: Autel AutoLink AL319 (2024 version)

Easy-to-use Multimeter for reliable diagnostics: AstroAI Auto-ranging Multimeter

← All BMW Diagnostic Trouble Codes

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