OBD Guide
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P1471

Diesel Particulate Filter Regeneration Insufficient

P1471 is an OBD-II diagnostic trouble code meaning: Diesel Particulate Filter Regeneration Insufficient. Common causes: frequent short trips without sufficient warming up, use of low-quality diesel fuel. Estimated repair cost: $167–556.

Severity
🔴 High
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$167–556 (est.)

Symptoms

  • Reduced engine power
  • Increased fuel consumption
  • Black smoke from the exhaust pipe
  • Check Engine Light Illuminates
  • DPF Service Required Message on Dashboard

Causes

  • Frequent short trips without sufficient warming up
  • Use of low-quality diesel fuel
  • Malfunction of temperature or pressure sensors in the DPF system
  • Clogged injectors or problems with the injection system
  • Malfunction of the additional fuel injection system for regeneration

How to Fix

  1. Perform forced DPF regeneration using diagnostic equipment
  2. Check and, if necessary, replace DPF pressure and temperature sensors
  3. Clean or replace the particulate filter if it is severely clogged.
  4. Check the condition of the injectors and fuel injection system
  5. Recommend long trips at high speeds for passive regeneration

Related codes

P2463P2002P242F

Error P1471 by Vehicle Brand

Volkswagen

FAQ

What does the P1471 code mean?

P1471 is an OBD-II diagnostic trouble code that indicates: Diesel Particulate Filter Regeneration Insufficient

What causes a P1471 error code?

The most common causes of P1471 include: Frequent short trips without sufficient warming up; Use of low-quality diesel fuel; Malfunction of temperature or pressure sensors in the DPF system; Clogged injectors or problems with the injection system.

How do I fix a P1471 diagnostic trouble code?

To fix P1471: Perform forced DPF regeneration using diagnostic equipment. Check and, if necessary, replace DPF pressure and temperature sensors. Clean or replace the particulate filter if it is severely clogged.. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P1471?

Limited driving only, diagnose soon

How much does it cost to fix P1471?

The estimated repair cost for P1471 is $167–556. Actual cost depends on your vehicle, location, and labor rates.

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