P138F Code - Turbocharger Boost Control Position Sensor 'B' Minimum/Maximum Stop Performance
Quick Answer
The Powertrain Control Module (PCM) monitors the Turbocharger Boost Control Position Sensor 'B'. Common causes include Faulty Turbocharger Boost Control Position Sensor 'B', Turbocharger Boost Control Position Sensor 'B' harness is open or shorted, Turbocharger Boost Control Position Sensor 'B' 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
- P138F indicates Turbocharger Boost Control Position Sensor 'B' Minimum/Maximum Stop Performance.
- Common causes
- Common causes include Faulty Turbocharger Boost Control Position Sensor 'B', Turbocharger Boost Control Position Sensor 'B' harness is open or shorted, Turbocharger Boost Control Position Sensor 'B' 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.
Code P138F Description
What are the Possible Causes of the DTC P138F?
- Faulty Turbocharger Boost Control Position Sensor 'B'
- Turbocharger Boost Control Position Sensor 'B' harness is open or shorted
- Turbocharger Boost Control Position Sensor 'B' circuit poor electrical connection
How to Fix the DTC P138F?
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 P138F 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 P138F code?
Need more information on how to fix the P138F code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the P138F code diagnosed by a professional: Find a repair shop in your area
Information for Specific Makes
- P138F BMW — Crankshaft Sensor Synchronization Malfunction
- P138F Ford — Turbocharger Boost Control Position Sensor 'B' Minimum/Maximum Stop Performance
- P138F MINI — Crankshaft Sensor Synchronization Malfunction
Frequently Asked Questions about P138F Code
1. What are the common symptoms of OBDII code P138F?
- Common symptoms include reduced engine power, poor acceleration, rough idling, and the check engine light illuminating.
2. What can cause the OBDII code P138F to trigger?
- The code P138F is typically triggered by a faulty turbocharger boost control position sensor 'B', wiring issues, or a malfunction in the turbocharger system.
3. How can I diagnose the cause of OBDII code P138F?
- Diagnosing the cause of P138F involves inspecting the turbocharger boost control position sensor 'B', checking for wiring faults, and testing the turbocharger system for proper functionality.
4. Can I continue driving my vehicle with OBDII code P138F present?
- It is not recommended to continue driving with the code P138F present, as it can lead to further damage to the turbocharger system and potentially affect the engine performance.
5. How can I repair OBDII code P138F?
- Repairing P138F may involve replacing the turbocharger boost control position sensor 'B', repairing any damaged wiring, or addressing issues within the turbocharger system.
6. Are there any DIY tips for fixing OBDII code P138F?
- DIY tips for fixing P138F include checking for loose connections, ensuring proper grounding of the sensor, and referring to the vehicle's service manual for specific repair instructions.
7. How much does it cost to repair OBDII code P138F at a mechanic?
- The cost of repairing P138F at a mechanic can vary depending on the specific cause of the issue, but it may range from $200 to $500 for parts and labor.
8. Can a faulty turbocharger boost control position sensor 'B' cause other issues in the vehicle?
- Yes, a faulty sensor can cause other issues such as poor fuel efficiency, increased emissions, and potential damage to the turbocharger system over time.
9. Is it possible for the OBDII code P138F to reoccur after repair?
- Yes, the code P138F may reoccur if the root cause of the issue is not properly addressed during the repair process.
10. How can regular maintenance help prevent OBDII code P138F from occurring?
- Regular maintenance, such as checking and cleaning the turbocharger system components, inspecting sensor connections, and monitoring engine performance, can help prevent issues that may trigger P138F.
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