P0108 2009 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 2009 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.
Code P0108 2009 Ford Fusion Description
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.
What are the Possible Causes of the DTC P0108 2009 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 2009 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.
Code Tech Notes
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P0108 2009 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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Frequently Asked Questions about P0108 2009 Ford Fusion Code
1. What are the common symptoms of OBDII code P0108 on a 2009 Ford Fusion?
- Common symptoms include poor engine performance, reduced fuel efficiency, rough idling, and in some cases, the vehicle may go into limp mode.
2. What does the OBDII code P0108 for a 2009 Ford Fusion indicate?
- This code indicates that there is a high input from the Manifold Absolute Pressure (MAP) or Barometric Pressure Sensor.
3. What are the possible causes of OBDII code P0108 on a 2009 Ford Fusion?
- The possible causes include a faulty MAP sensor, damaged wiring or connectors, a clogged or dirty MAP sensor, or issues with the engine's vacuum system.
4. How can I diagnose the cause of OBDII code P0108 on my 2009 Ford Fusion?
- You can diagnose the issue by visually inspecting the sensor and its connections, testing the sensor's voltage with a multimeter, checking for vacuum leaks, and using a scan tool to monitor sensor data.
5. Can I drive my 2009 Ford Fusion with OBDII code P0108?
- It is not recommended to drive the vehicle with this code as it can lead to further damage and poor performance. It is best to address the issue promptly.
6. How can I repair OBDII code P0108 on my 2009 Ford Fusion?
- The repair typically involves replacing the faulty MAP sensor, cleaning or replacing any clogged components, checking and repairing wiring/connectors, and clearing the trouble code.
7. Will resetting the OBDII code P0108 on a 2009 Ford Fusion make it go away permanently?
- Resetting the code may temporarily turn off the check engine light, but if the underlying issue is not addressed, the code is likely to reappear.
8. Can a DIY enthusiast fix OBDII code P0108 on a 2009 Ford Fusion?
- Depending on the individual's skill level and access to tools, a DIY enthusiast may be able to replace the MAP sensor or clean components to address the issue.
9. How much does it cost to repair OBDII code P0108 on a 2009 Ford Fusion at a mechanic?
- The cost of repairing this code can vary depending on the labor rates, parts needed, and any additional repairs required. It is best to consult with a mechanic for an accurate estimate.
10. Are there any preventive measures to avoid OBDII code P0108 on a 2009 Ford Fusion?
- Regularly maintaining your vehicle, checking the sensor connections, ensuring proper vacuum system function, and addressing any issues promptly can help prevent this code from appearing.
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