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AutoCodes – Ford – P0108 Ford

P0108 Ford Code - Manifold Absolute Pressure/Barometric Pressure Sensor High Input

Quick Answer

The Manifold Absolute Pressure (MAP) Sensor is located on the intake manifold and measures the intake manifold pressure. Common causes include Faulty Manifold Absolute Pressure (MAP) 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
P0108 Ford indicates Manifold Absolute Pressure/Barometric Pressure Sensor High Input.
Common causes
Common causes include Faulty Manifold Absolute Pressure (MAP) 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 58,074
How popular is this code, among other codes? Medium
What is this?
Table of contents Created and updated by William Orellana on Sep 21, 2023
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Code P0108 Ford Description

The Manifold Absolute Pressure (MAP) Sensor is located on the intake manifold and measures the intake manifold pressure. The Powertrain Control Module (PCM) uses this information to determine the air charge and to provide the input for various engine control functions. Under normal operation, the greatest pressure that can exist in the intake manifold is at ignition ON, and engine OFF, which is equal to the Barometric Pressure (BARO). The lowest manifold pressure occurs when the vehicle is idling or decelerating. The ECM monitors the MAP sensor signal for pressure outside of the normal range. The sensor translates this action into electrical resistance. The MAP sensor may be integrated with an Intake Air Temperature (IAT) sensor. The Diagnostic Trouble Code (DTC) will be set when the MAP Sensor operating voltage is greater than the maximum allowable calibrated parameter of 4.96 volts.
OBDII Code P0108 Ford - Manifold Absolute Pressure/Barometric Pressure Sensor High Input - AutoCodes.com
P0108 Ford Code - Manifold Absolute Pressure/Barometric Pressure Sensor High Input
What does this mean?

What are the Possible Causes of the DTC P0108 Ford?

  • Faulty Manifold Absolute Pressure (MAP) Sensor
  • Manifold Absolute Pressure Sensor harness is open or shorted
  • Manifold Absolute Pressure Sensor circuit poor electrical connection

How to Fix the DTC P0108 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 P0108 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.

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Information for Specific Ford Models

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 P0108 Ford Code

1. What are the common symptoms of OBDII code P0108 in a Ford vehicle?

- Common symptoms include poor engine performance, reduced fuel efficiency, stalling or rough idling, and the illumination of the Check Engine light.

2. What does the OBDII code P0108 indicate for a Ford vehicle?

- OBDII code P0108 indicates a high input from the Manifold Absolute Pressure (MAP) sensor or Barometric Pressure (BARO) sensor in the vehicle's engine.

3. What are the potential causes of OBDII code P0108 in a Ford car or truck?

- The common causes of P0108 include a faulty MAP/BARO sensor, damaged wiring or connectors, a vacuum leak in the intake system, or a problem with the engine's computer (PCM).

4. How can I diagnose the OBDII code P0108 in my Ford vehicle?

- Diagnosing P0108 involves using an OBDII scanner to retrieve the code, checking the sensor's voltage output, inspecting the sensor and its wiring for damage, and testing the intake system for leaks.

5. Can I drive my Ford vehicle with OBDII code P0108?

- It is not recommended to drive your vehicle with an unresolved P0108 code, as it can lead to further engine damage or poor performance. It's best to address the issue promptly.

6. How can I repair OBDII code P0108 in my Ford vehicle?

- Repairing P0108 may involve replacing the faulty MAP/BARO sensor, repairing damaged wiring or connectors, fixing any vacuum leaks, or resetting the engine computer to clear the code.

7. Will resetting the Check Engine light resolve OBDII code P0108 in my Ford vehicle?

- Resetting the Check Engine light may temporarily clear the code, but if the underlying issue causing P0108 is not addressed, the code is likely to reappear once the problem is detected again.

8. Are there any DIY tips for fixing OBDII code P0108 in a Ford car or truck?

- DIY tips include checking and cleaning the sensor connections, inspecting for visible damage or corrosion, and ensuring that the sensor is securely mounted in place.

9. How much does it typically cost to repair OBDII code P0108 in a Ford vehicle?

- The cost of repairing P0108 can vary depending on the specific cause of the issue, but it may range from $100 to $300 for parts and labor at a repair shop.

10. Is it necessary to visit a mechanic for OBDII code P0108, or can I fix it myself?

- While some DIY enthusiasts may be able to address P0108 on their own, it's recommended to consult a qualified mechanic for proper diagnosis and repair to ensure the issue is resolved correctly.

Discuss the causes and fixes for P0108 Ford OBDII Code

Submit a New Comment

  • CRACKED AND OR LEAKING VAC HOSES COULD BE THE PROBLEMS FOR CODES PO108 AND PO106 AT THE SAME TIME

    Reply to Comment

  • Have a P0108 and P0406 codes for a 2006 Ford Explorer. It is running a little rough so maybe P0406 is related to the ERG. What's my best approach to get these fixed?

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  • I have the exact same codes. Did you find anything out about getting it fixed?

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  • If you have the P0108 and P0406 codes, then the problem is more than likely the Exhaust Gas Recirculation (ERG) valve.

    Reply to Comment
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