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AutoCodes – Ford – P0104 2010 Ford Fusion

P0104 2010 Ford Fusion Code - Mass or Volume Air Flow 'A' Circuit Intermittent

Quick Answer

The Mass Air Flow (MAF) sensor is placed in the stream of the intake air. Common causes include Dirty Air Filter, Dirty Mass Air Flow (MAF) Sensor, Intake air leaks. 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
P0104 2010 Ford Fusion indicates Mass or Volume Air Flow 'A' Circuit Intermittent.
Common causes
Common causes include Dirty Air Filter, Dirty Mass Air Flow (MAF) Sensor, Intake air leaks.
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 4,191
How popular is this code, among other codes? Low
What is this?
Table of contents Created and updated by William Orellana on May 19, 2022
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Code P0104 2010 Ford Fusion Description

The Mass Air Flow (MAF) sensor is placed in the stream of the intake air. It measures the intake flow rate by measuring a part of the entire intake flow. It consists of a hot film that is supplied with electric current from the Engine Control Module (ECM). The ECM controls the temperature of the hot film by a certain amount. The heat generated by the hot film is reduced as the intake air flows around it. The more air, the greater the heat loss. Therefore, the ECM must supply more electric current to maintain the temperature of the hot film as air flow increases. The ECM detects the air flow by means of this current change. The Diagnostic Trouble Code (DTC) will be set when the ECM detects an MAF Sensor signal that is outside the calibrated level.
OBDII Code P0104 2010 Ford Fusion - Mass or Volume Air Flow 'A' Circuit Intermittent - AutoCodes.com
P0104 2010 Ford Fusion Code - Mass or Volume Air Flow 'A' Circuit Intermittent
What does this mean?

What are the Possible Causes of the DTC P0104 2010 Ford Fusion?

  • Dirty Air Filter
  • Dirty Mass Air Flow (MAF) Sensor
  • Intake air leaks
  • Faulty Mass Air Flow Sensor
  • Mass Air Flow Sensor harness is open or shorted
  • Mass Air Flow Sensor circuit poor electrical connection

How to Fix the DTC P0104 2010 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

Before replacing the Mass Air Flow (MAF) Sensor, try replacing the air filter and cleaning the Mass Air Flow Sensor with low compress air or Mass Air Flow Sensor Cleaner. Reset code and drive vehicle. If the code comes back, you must replace the Mass Air Flow Sensor to fix the problem.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0104 2010 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.

Need more information about the P0104 2010 Ford Fusion code?

Need more information on how to fix the P0104 2010 Ford Fusion code? Get Access to Factory Service Manuals

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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 P0104 2010 Ford Fusion Code

1. What does the OBDII code P0104 mean for a 2010 Ford Fusion?

P0104 indicates an intermittent issue in the Mass Air Flow (MAF) sensor circuit, which measures the amount of air entering the engine.

2. What are the common symptoms of a P0104 code?

Symptoms include rough idling, poor acceleration, reduced fuel efficiency, and possible stalling.

3. What causes the P0104 code to appear?

Common causes include a faulty MAF sensor, damaged wiring or connectors in the MAF circuit, air intake leaks, or a dirty air filter.

4. Can I drive my 2010 Ford Fusion with the P0104 code?

While the car may still be drivable, driving with this code can reduce performance and fuel efficiency, and prolonged issues could lead to engine damage.

5. How do I diagnose a P0104 code?

Start by inspecting the MAF sensor, wiring, and connectors for damage or dirt. Use a scan tool to check for live data from the MAF sensor to confirm intermittent readings.

6. How do I fix the P0104 code on my Ford Fusion?

Repairs may include cleaning or replacing the MAF sensor, repairing or replacing damaged wiring, or fixing intake leaks.

7. Can a dirty air filter cause the P0104 code?

Yes, a clogged or dirty air filter can restrict airflow and cause intermittent MAF sensor readings, leading to this code.

8. What tools are needed to repair a P0104 code?

You may need a scan tool, multimeter, and basic hand tools for inspection, cleaning, and replacement of components.

9. How much does it cost to fix a P0104 code?

The cost varies, but replacing a MAF sensor can range from $100 to $300, plus labor if performed by a mechanic.

10. Will clearing the P0104 code fix the problem?

Clearing the code may temporarily turn off the check engine light, but the underlying issue must be resolved to prevent the code from returning.

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