AutoCodes – Ford – P051A Ford

P051A Ford Code - Crankcase Pressure Sensor Circuit

Quick Answer

The Engine Control Module (ECM) monitors the Crankcase Pressure Sensor signal. Common causes include Faulty Crankcase Pressure Sensor, Crankcase Pressure Sensor harness is open or shorted, Crankcase 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: P051A Ford indicates Crankcase Pressure Sensor Circuit.
Common causes: Common causes include Faulty Crankcase Pressure Sensor, Crankcase Pressure Sensor harness is open or shorted, Crankcase 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 3,381

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 Apr 27, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P051A Ford Description

The Engine Control Module (ECM) monitors the Crankcase Pressure Sensor signal. The ECM sets the OBDII code when the Crankcase Pressure Sensor is not to factory specifications.

OBDII Code P051A Ford - Crankcase Pressure Sensor Circuit - AutoCodes.com — P051A Ford Code - Crankcase Pressure Sensor Circuit

What does this mean?

What are the Possible Causes of the DTC P051A Ford?

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

How to Fix the DTC P051A Ford?

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 P051A Ford 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 P051A Ford code?

Need more information on how to fix the P051A Ford code? Get Access to Factory Service Manuals

Need Help with the Code?

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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 P051A Ford Code

1. What are the common symptoms of OBDII code P051A in a Ford related to the Crankcase Pressure Sensor Circuit?

- Common symptoms include rough idling, decreased engine performance, and an illuminated check engine light.

2. What are the possible causes of OBDII code P051A in a Ford?

- The code P051A can be triggered by a faulty crankcase pressure sensor, wiring issues, or a defective engine control module (ECM).

3. How can I diagnose the Crankcase Pressure Sensor Circuit issue causing OBDII code P051A in my Ford?

- Diagnose the issue by inspecting the sensor and its wiring for any damage, checking the sensor's resistance, and using a scan tool to monitor sensor readings.

4. Can I continue driving my Ford with OBDII code P051A related to the Crankcase Pressure Sensor Circuit?

- It is not recommended to continue driving with this code as it can lead to further engine damage and decreased performance.

5. How can I repair OBDII code P051A in my Ford due to the Crankcase Pressure Sensor Circuit issue?

- Repair the issue by replacing the faulty crankcase pressure sensor, repairing any damaged wiring, or reprogramming the ECM if needed.

6. Are there any DIY tips for fixing OBDII code P051A in a Ford myself?

- DIY tips include carefully inspecting the sensor and wiring, using a multimeter to check for continuity, and following a repair manual for step-by-step instructions.

7. Can a mechanic reset the OBDII code P051A without fixing the underlying issue in a Ford?

- While a mechanic can clear the code, it is crucial to address the root cause to prevent the code from reappearing and potential engine problems.

8. How much does it typically cost to repair OBDII code P051A in a Ford at a dealership or a repair shop?

- The cost of repairing this code can vary depending on the exact cause, but it may range from $100 to $300 for parts and labor.

9. Are there any recalls or technical service bulletins related to OBDII code P051A in Ford vehicles?

- Check with your local Ford dealership or visit the NHTSA website to see if there are any recalls or TSBs related to OBDII code P051A in your specific Ford model.

10. How often should the Crankcase Pressure Sensor be inspected or replaced in a Ford to prevent OBDII code P051A from occurring?

- It is recommended to inspect the sensor during regular maintenance intervals and replace it as necessary to prevent issues leading to OBDII code P051A.