AutoCodes – Ford – P0108 2012 Ford Fusion

P0108 2012 Ford Fusion Code - Manifold Absolute Pressure/Barometric Pressure Sensor High Input

Quick Answer

The Manifold Absolute Pressure (MAP) sensor measures the pressure inside the intake manifold. 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 2012 Ford Fusion 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 4,492

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 20, 2022

Description
Step-by-Step Diagnostic Guide
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code P0108 2012 Ford Fusion Description

The Manifold Absolute Pressure (MAP) sensor measures the pressure inside the intake manifold. Pressure in the intake manifold is affected by engine speed, throttle opening, air temperature, Barometric Pressure (BARO) and if equipped, turbocharger output. A diaphragm within the MAP sensor is displaced by the pressure changes that occur from the varying load and operating conditions of the engine. The sensor translates this action into electrical resistance.
The MAP sensor wiring includes 3 circuits. The Engine Control Module (ECM) supplies a regulated 5 volts to the sensor on a 5 V reference circuit. The ECM supplies ground on a low reference circuit. The MAP sensor provides a signal voltage to the ECM, relative to the pressure changes, on the MAP sensor signal circuit. The ECM converts the signal voltage input to a pressure value.
Under normal operation the greatest pressure that can exist in the intake manifold is at ignition ON, engine OFF, which is equal to the 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 Diagnostic Trouble Code (DTC) will be set when the ECM detects that the MAP Sensor voltage is more than 4.50 V for greater than 13 ms.

OBDII Code P0108 2012 Ford Fusion - Manifold Absolute Pressure/Barometric Pressure Sensor High Input - AutoCodes.com — P0108 2012 Ford Fusion Code - Manifold Absolute Pressure/Barometric Pressure Sensor High Input

What does this mean?

What are the Possible Causes of the DTC P0108 2012 Ford Fusion?

Faulty Manifold Absolute Pressure (MAP) Sensor
Manifold Absolute Pressure Sensor harness is open or shorted
Manifold Absolute Pressure Sensor circuit poor electrical connection
Faulty Engine Control Module (ECM)

How to Fix the DTC P0108 2012 Ford Fusion?

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 does this mean?

Code Tech Notes

Try to clean the Map Senor/Intake Air Temperature sensor 2 with mass air flow sensor cleaner.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0108 2012 Ford Fusion 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 P0108 2012 Ford Fusion Code

1. What are the common symptoms of OBDII code P0108 in a 2012 Ford Fusion?

The common symptoms of code P0108 in a 2012 Ford Fusion include poor engine performance, reduced fuel efficiency, rough idling, and potential stalling.

2. What does the OBDII code P0108 on a 2012 Ford Fusion mean?

OBDII code P0108 in a 2012 Ford Fusion indicates a high input from the Manifold Absolute Pressure (MAP) or Barometric Pressure Sensor.

3. What are the possible causes of OBDII code P0108 in a 2012 Ford Fusion?

Possible causes of code P0108 in a 2012 Ford Fusion include a faulty MAP sensor, damaged or disconnected wiring to the sensor, or issues with the engine's vacuum system.

4. How can I diagnose the Manifold Absolute Pressure Sensor on a 2012 Ford Fusion?

To diagnose the MAP sensor on a 2012 Ford Fusion, you can use a multimeter to test the sensor's voltage output, visually inspect the sensor and its wiring for any damage, or use a scan tool to monitor sensor data.

5. Can a dirty air filter trigger OBDII code P0108 in a 2012 Ford Fusion?

Yes, a dirty air filter can cause incorrect readings from the MAP sensor, potentially triggering OBDII code P0108 in a 2012 Ford Fusion.

6. How can I repair OBDII code P0108 in my 2012 Ford Fusion?

Repairing OBDII code P0108 in a 2012 Ford Fusion may involve replacing the faulty MAP sensor, repairing or replacing damaged wiring, cleaning the sensor or throttle body, or addressing any vacuum leaks in the system.

7. Is it safe to continue driving with OBDII code P0108 in a 2012 Ford Fusion?

It is not recommended to continue driving with OBDII code P0108 in a 2012 Ford Fusion as it can lead to further engine performance issues and potential damage if left unaddressed.

8. Can I reset OBDII code P0108 on a 2012 Ford Fusion by disconnecting the battery?

While disconnecting the battery may clear the code temporarily, it is not a recommended method to address the underlying issue causing code P0108 in a 2012 Ford Fusion.

9. How much does it cost to repair OBDII code P0108 on a 2012 Ford Fusion?

The cost to repair OBDII code P0108 on a 2012 Ford Fusion can vary depending on the exact cause of the issue, but it may range from $100 to $300 for parts and labor.

10. Can a mechanic help diagnose and repair OBDII code P0108 in a 2012 Ford Fusion?

Yes, a qualified mechanic can help diagnose and repair OBDII code P0108 in a 2012 Ford Fusion by using professional diagnostic tools and expertise to pinpoint and address the root cause of the issue.