AutoCodes – Audi – P2404 Audi

P2404 Audi Code - Evaporative Emission System Leak Detection Pump Sense Circuit Range/Performance

Quick Answer

The Engine Control Module (ECM) checks power consumption on the Leak Detection Pump. Common causes include Faulty Leak Detection Pump, Leak Detection Pump harness is open or shorted, Leak Detection Pump circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means: P2404 Audi indicates Evaporative Emission System Leak Detection Pump Sense Circuit Range/Performance.
Common causes: Common causes include Faulty Leak Detection Pump, Leak Detection Pump harness is open or shorted, Leak Detection Pump circuit poor electrical connection.
Severity: High - diagnose this code as soon as possible.
Can I drive?: Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

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Code Popularity 19,342

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Jun 14, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P2404 Audi Description

The Engine Control Module (ECM) checks power consumption on the Leak Detection Pump. The Diagnostic Trouble Code (DTC) can be diagnosed when the leak diagnostic system is run. A diagnostic trouble code is stored if the current consumption of the pump in the Leak Detection Pump unit varies too much during the reference phase.

OBDII Code P2404 Audi - Evaporative Emission System Leak Detection Pump Sense Circuit Range/Performance - AutoCodes.com — P2404 Audi Code - Evaporative Emission System Leak Detection Pump Sense Circuit Range/Performance

What does this mean?

What are the Possible Causes of the DTC P2404 Audi?

Faulty Leak Detection Pump
Leak Detection Pump harness is open or shorted
Leak Detection Pump circuit poor electrical connection
Faulty Purge Valve
Clogged or damaged charcoal canister

How to Fix the DTC P2404 Audi?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P2404 Audi code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P2404 Audi Code

1. What are the common symptoms of OBDII code P2404 in an Audi?

- Common symptoms include the illumination of the Check Engine Light, decreased fuel efficiency, and potential issues with the vehicle's emission control system.

2. What causes OBDII code P2404 in an Audi?

- This code is typically triggered by a malfunction in the evaporative emission system leak detection pump sense circuit, which may be caused by a faulty leak detection pump, wiring issues, or a vacuum leak.

3. How serious is OBDII code P2404 in an Audi?

- While the vehicle may still be operable with this code present, it is important to address it promptly to prevent potential damage to the emission control system and ensure the vehicle meets emissions standards.

4. Can I continue driving my Audi with OBDII code P2404?

- It is generally safe to drive the vehicle with this code, but it is recommended to have the issue diagnosed and repaired as soon as possible to avoid potential long-term issues.

5. How can I diagnose OBDII code P2404 in my Audi?

- Diagnosis typically involves using an OBDII scanner to read the code, inspecting the evaporative emission system components, checking for vacuum leaks, and testing the leak detection pump and associated circuits.

6. What are the repair options for OBDII code P2404 in an Audi?

- Repair options may include replacing the leak detection pump, repairing any damaged wiring or connectors, fixing vacuum leaks, or resetting the fault code after addressing the underlying issue.

7. Can I reset OBDII code P2404 in my Audi without making repairs?

- While you can clear the code with an OBDII scanner, it is not recommended to do so without addressing the root cause, as the issue may persist and cause further problems down the line.

8. How much does it typically cost to repair OBDII code P2404 in an Audi?

- The cost of repairs can vary depending on the specific cause of the code and labor rates in your area. It is advisable to consult with a mechanic or dealership for an accurate estimate.

9. Are there any maintenance tips to prevent OBDII code P2404 from recurring in my Audi?

- Regularly inspecting and maintaining the evaporative emission system components, ensuring the gas cap is properly sealed, and promptly addressing any Check Engine Light warnings can help prevent this code from recurring.

10. Can a DIY enthusiast repair OBDII code P2404 in an Audi?

- While some aspects of diagnosing and repairing this code may be within reach of a DIY enthusiast, it is recommended to have the issue assessed by a professional mechanic with experience in dealing with emissions-related faults for accurate diagnosis and repair.