AutoCodes – Audi – P0470 Audi

P0470 Audi Code - Exhaust Pressure Sensor Malfunction

Quick Answer

The Exhaust Back Pressure (EBP) sensor is a variable capacitance sensor that, when supplied with a 5-volt reference signal from the Engine Control Module (ECM), produces a linear analog voltage signal that indicates pressure. Common causes include Faulty Exhaust Back Pressure Sensor, Exhaust Back Pressure Sensor harness is open or shorted, Exhaust Back Pressure Sensor circuit poor electrical connection. Severity is Moderate - service should be scheduled soon. The vehicle may still be drivable for short trips if it runs normally, but avoid hard driving and repair it soon.

What it means: P0470 Audi indicates Exhaust Pressure Sensor Malfunction.
Common causes: Common causes include Faulty Exhaust Back Pressure Sensor, Exhaust Back Pressure Sensor harness is open or shorted, Exhaust Back Pressure Sensor circuit poor electrical connection.
Severity: Moderate - service should be scheduled soon.
Can I drive?: The vehicle may still be drivable for short trips if it runs normally, but avoid hard driving and repair it soon.

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Code Popularity 4,020

How popular is this code, among other codes? Low

Repair Importance Level

Moderate (Service soon) (2 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Apr 23, 2019

Description
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code P0470 Audi Description

The Exhaust Back Pressure (EBP) sensor is a variable capacitance sensor that, when supplied with a 5-volt reference signal from the Engine Control Module (ECM), produces a linear analog voltage signal that indicates pressure.
The EBP sensor's primary function is to measure exhaust back pressure so that the ECM can control the exhaust back pressure regulator (EPR) when needed.

OBDII Code P0470 Audi - Exhaust Pressure Sensor Malfunction - AutoCodes.com — P0470 Audi Code - Exhaust Pressure Sensor Malfunction

What does this mean?

What are the Possible Causes of the DTC P0470 Audi?

Faulty Exhaust Back Pressure Sensor
Exhaust Back Pressure Sensor harness is open or shorted
Exhaust Back Pressure Sensor circuit poor electrical connection

How to Fix the DTC P0470 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 does this mean?

Code Tech Notes

Replacing the exhaust back pressure usually takes care of the problem

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0470 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.

Need more information about the P0470 Audi code?

Need more information on how to fix the P0470 Audi code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P0470 Audi code diagnosed by a professional: Find a repair shop in your area

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 P0470 Audi Code

1. What are the common symptoms of OBDII code P0470 in an Audi related to the Exhaust Pressure Sensor Malfunction?

The common symptoms include a loss of power, decreased fuel efficiency, and potentially white or black smoke coming from the exhaust.

2. What are the possible causes of the P0470 code in an Audi?

The code P0470 in an Audi is typically triggered by a faulty exhaust pressure sensor, damaged wiring or connectors, or issues with the exhaust system itself.

3. How can I diagnose the Exhaust Pressure Sensor Malfunction in my Audi?

To diagnose the issue, you can use an OBDII scanner to read the code and then visually inspect the exhaust pressure sensor, its wiring, and connectors for any signs of damage or corrosion.

4. Can I still drive my Audi with the P0470 code present?

It is not recommended to drive your Audi with the P0470 code present, as it can lead to further damage to the engine and the exhaust system. It's best to address the issue promptly.

5. How can I repair the Exhaust Pressure Sensor Malfunction in my Audi?

Repairing the issue typically involves replacing the faulty exhaust pressure sensor, repairing or replacing any damaged wiring or connectors, and clearing the code with an OBDII scanner.

6. Will resetting the OBDII code P0470 make it go away permanently?

Resetting the code may make it go away temporarily, but if the underlying issue causing the code is not addressed, it is likely to reappear. It's important to diagnose and fix the root cause of the problem.

7. Can a DIY enthusiast fix the P0470 code in an Audi?

Depending on your skill level and access to tools, a DIY enthusiast may be able to replace the exhaust pressure sensor or repair wiring issues causing the code. However, it's recommended to consult a professional if unsure.

8. How much does it cost to repair the Exhaust Pressure Sensor Malfunction in an Audi?

The cost of repairing the P0470 code in an Audi can vary depending on the extent of the damage and whether you choose to do it yourself or take it to a mechanic. It's advisable to get quotes from different repair shops.

9. Are there any preventive measures to avoid the P0470 code in an Audi?

Regular maintenance of your Audi, including checking the exhaust system and sensors during routine inspections, can help prevent issues like the P0470 code from occurring.

10. Is the P0470 code specific to Audi vehicles only?

No, the P0470 code related to the Exhaust Pressure Sensor Malfunction can occur in various vehicle makes and models, not just limited to Audi vehicles.