AutoCodes – Audi – P1158 Audi

P1158 Audi Code - Manifold Absolute Pressure Sensor Implausible Signal

Quick Answer

P1158 Audi indicates Manifold Absolute Pressure Sensor Implausible Signal. Common causes include Faulty Manifold Absolute Pressure Sensor, Manifold Absolute Pressure Sensor harness is open or shorted, Manifold Absolute Pressure Sensor 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: P1158 Audi indicates Manifold Absolute Pressure Sensor Implausible Signal.
Common causes: Common causes include Faulty Manifold Absolute Pressure Sensor, Manifold Absolute Pressure Sensor harness is open or shorted, Manifold Absolute Pressure Sensor 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 13,052

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Intermediate (2 / 3)

What is this?

Table of contents Created and updated by William Orellana on May 03, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P1158 Audi Description

OBDII Code P1158 Audi - Manifold Absolute Pressure Sensor Implausible Signal - AutoCodes.com — P1158 Audi Code - Manifold Absolute Pressure Sensor Implausible Signal

What does this mean?

What are the Possible Causes of the DTC P1158 Audi?

Faulty Manifold Absolute Pressure Sensor
Manifold Absolute Pressure Sensor harness is open or shorted
Manifold Absolute Pressure Sensor circuit poor electrical connection

How to Fix the DTC P1158 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 P1158 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 P1158 Audi Code

1. What are the common symptoms of OBDII code P1158 in an Audi related to the Manifold Absolute Pressure Sensor?

- Common symptoms include poor engine performance, rough idling, decreased fuel efficiency, and potential stalling.

2. What are the possible causes of OBDII code P1158 in an Audi?

- The code P1158 in an Audi is often triggered by a faulty Manifold Absolute Pressure (MAP) sensor, wiring issues, vacuum leaks, or a problem with the intake system.

3. How can I diagnose the issue causing OBDII code P1158 in my Audi?

- Diagnosing the issue involves checking the MAP sensor, inspecting the wiring for any damage or loose connections, conducting a vacuum leak test, and ensuring the intake system is functioning properly.

4. Can I drive my Audi with OBDII code P1158 present?

- It is not recommended to drive your Audi with the OBDII code P1158 present, as it can lead to further engine damage and potential safety hazards.

5. How do I repair OBDII code P1158 in my Audi?

- Repairing the issue may involve replacing the faulty MAP sensor, repairing any damaged wiring, fixing vacuum leaks, or addressing any intake system problems.

6. Will resetting the OBDII code P1158 in my Audi make the issue go away?

- Resetting the code may temporarily turn off the Check Engine Light, but it will not fix the underlying issue causing the P1158 code to appear.

7. Can a DIY enthusiast fix OBDII code P1158 in an Audi?

- Depending on the cause of the code, some DIY enthusiasts may be able to fix the issue by replacing the MAP sensor or addressing minor wiring problems. However, complex issues may require professional assistance.

8. How much does it cost to repair OBDII code P1158 in an Audi?

- The cost of repairing OBDII code P1158 in an Audi can vary depending on the cause of the issue, parts needed, and labor costs. It is recommended to consult a mechanic for a more accurate estimate.

9. Are there any preventive measures to avoid OBDII code P1158 in my Audi?

- Regular maintenance, such as checking and replacing the MAP sensor as recommended by the manufacturer, ensuring the intake system is clean, and addressing any engine performance issues promptly, can help prevent the occurrence of OBDII code P1158.

10. How long does it take to repair OBDII code P1158 in an Audi?

- The time required to repair OBDII code P1158 in an Audi can vary depending on the complexity of the issue and the availability of parts. Simple fixes may take a few hours, while more complex problems could require more time.