Volkswagen Audi Error Code P1471: How to Fix It

Q: Can I drive my VW/Audi with error code P1471?

Yes, the vehicle is drivable and the issue does not affect performance or safety. However, the check engine light will stay on, and the vehicle may fail an emissions test. It's best to fix it promptly.

Q: What is the LDP pump and what does it do?

The LDP (Leak Detection Pump) is part of the EVAP system. It generates pressure or vacuum to check for fuel vapor leaks. A short to B+ means it receives constant power, which can cause it to run continuously and drain the battery.

Q: Can a bad LDP pump cause other problems?

Yes, a continuously running pump can discharge the battery overnight. Also, incorrect EVAP system operation may lead to a rough idle or fuel smell, though these are rare.

Q: How much does it cost to repair P1471 at a shop?

Diagnostic fees range from $100-$200. If wiring repair is needed, labor may add $150-$300. LDP pump replacement (part cost $100-$200) plus labor brings total to $300-$500.

Q: Is P1471 the same for Audi and VW?

Yes, P1471 is a generic code used by both Volkswagen and Audi for the same issue: EVAP LDP circuit short to battery positive.

Abstract

Error code P1471 in Volkswagen and Audi vehicles indicates a short to battery positive in the EVAP Leak Detection Pump (LDP) circuit. This means the pump's electrical circuit has a direct connection to 12V power, which can cause the pump to run continuously or malfunction. While not a critical failure, it can trigger the check engine light and may affect emissions. This guide helps you diagnose and fix the issue.