Engine-CodesGeneric – P138E

P138E Code - Turbocharger Boost Control Position Sensor 'A' Minimum/Maximum Stop Performance

Quick Answer

The diagnostic trouble code P138E indicates a problem with the Turbocharger Boost Control Position Sensor 'A' Minimum/Maximum Stop Performance. Common causes include Faulty turbocharger boost control position sensor, Wiring or connector issues, Turbocharger control module failure. 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
P138E indicates Turbocharger Boost Control Position Sensor 'A' Minimum/Maximum Stop Performance.
Common causes
Common causes include Faulty turbocharger boost control position sensor, Wiring or connector issues, Turbocharger control module failure.
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.
Table of contents Created and updated by William Orellana on Sep 06, 2024
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Code P138E Description

The diagnostic trouble code P138E indicates a problem with the Turbocharger Boost Control Position Sensor 'A' Minimum/Maximum Stop Performance. This sensor is responsible for monitoring the position of the turbocharger boost control, ensuring that it operates within specified parameters. When this code is triggered, it means that the sensor has detected that the turbocharger boost control position is either exceeding the maximum or falling below the minimum limits. This issue can have a significant impact on the vehicle's performance, as the turbocharger plays a crucial role in increasing engine power and efficiency.

OBDII Code P138E - Turbocharger Boost Control Position Sensor 'A' Minimum/Maximum Stop Performance
P138E Code - Turbocharger Boost Control Position Sensor 'A' Minimum/Maximum Stop Performance

Common Causes of P138E

  1. Faulty turbocharger boost control position sensor
  2. Wiring or connector issues
  3. Turbocharger control module failure
  4. Vacuum leaks in the turbocharger system
  5. Mechanical issues with the turbocharger itself

Symptoms of P138E

  1. Reduced engine power
  2. Decreased fuel efficiency
  3. Illuminated check engine light
  4. Limp mode activation
  5. Hesitation or lack of acceleration

How to Fix P138E

  1. Diagnose the problem by using a scan tool to read the code and identify the issue.
  2. Inspect the turbocharger boost control position sensor for any damage or malfunction.
  3. Check the wiring and connectors for any signs of damage or corrosion.
  4. Test the turbocharger control module for proper functionality.
  5. Repair or replace any faulty components as needed.

Cost to Fix P138E

The cost of repairing the Turbocharger Boost Control Position Sensor 'A' Minimum/Maximum Stop Performance issue can vary depending on the specific cause of the problem and the labor rates in your area. On average, the cost of parts for this repair can range from $100 to $300, while the labor costs can range from $150 to $400. Keep in mind that additional diagnostic time may be required to pinpoint the exact cause of the issue, so it's advisable to consult with a professional mechanic for a more accurate cost estimate.

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Code P138E Information for Specific Makes

  • P138E Ford — Turbocharger Boost Control Position Sensor 'A' Minimum/Maximum Stop Performance
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 P138E Code

1. What are common symptoms of OBDII code P138E?

- Common symptoms of code P138E include decreased engine performance, loss of power, and potential stalling or rough idling.

2. What can cause OBDII code P138E to trigger?

- Code P138E is typically triggered by issues with the turbocharger boost control position sensor 'A', such as a faulty sensor, wiring problems, or a vacuum leak.

3. How can I diagnose the cause of OBDII code P138E?

- Diagnosing code P138E involves checking the turbocharger boost control position sensor 'A' for proper operation, inspecting the sensor wiring for damage, and looking for any vacuum leaks in the system.

4. What are the repair options for OBDII code P138E?

- Repair options for code P138E may include replacing the turbocharger boost control position sensor 'A', repairing damaged wiring, fixing vacuum leaks, or resetting the fault code after resolving the underlying issue.

5. Can I drive my vehicle with OBDII code P138E present?

- It is not recommended to drive your vehicle with code P138E present, as it can lead to further damage to the turbocharger system and potentially cause engine performance issues.

6. How urgent is it to address OBDII code P138E?

- It is important to address code P138E promptly to prevent potential damage to the turbocharger system and ensure optimal engine performance.

7. Can OBDII code P138E be a false alarm?

- While rare, code P138E can sometimes be triggered by intermittent issues or sensor malfunctions, leading to a potential false alarm. It is advisable to diagnose the problem thoroughly to rule out false triggers.

8. Is it possible to reset OBDII code P138E without repairs?

- Resetting code P138E without addressing the underlying issue is not recommended, as the problem will likely persist and could lead to further complications down the line.

9. Are there any preventive measures to avoid OBDII code P138E?

- Regular maintenance of the turbocharger system, including checking for leaks and ensuring proper sensor operation, can help prevent the occurrence of code P138E.

10. How can a mechanic help with resolving OBDII code P138E?

- A qualified mechanic can perform a thorough diagnostic check, accurately identify the cause of code P138E, and recommend the necessary repairs or replacements to resolve the issue effectively.

Discuss the causes and fixes for P138E OBDII Code

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