AutoCodes – Ford – P0104 2011 Ford Fusion

P0104 2011 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 2011 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 3,233

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 19, 2022

Description
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code P0104 2011 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 2011 Ford Fusion - Mass or Volume Air Flow 'A' Circuit Intermittent - AutoCodes.com — P0104 2011 Ford Fusion Code - Mass or Volume Air Flow 'A' Circuit Intermittent

What does this mean?

What are the Possible Causes of the DTC P0104 2011 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 2011 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 2011 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 2011 Ford Fusion 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 P0104 2011 Ford Fusion Code

1. What are the common symptoms of OBDII code P0104 in a 2011 Ford Fusion?

- Common symptoms include rough idling, engine stalling, decreased fuel efficiency, and potential issues with acceleration.

2. What does the OBDII code P0104 'Mass or Volume Air Flow 'A' Circuit Intermittent' mean for a 2011 Ford Fusion?

- This code indicates that there is an intermittent issue with the mass or volume air flow sensor circuit in the vehicle.

3. What are some possible causes of the P0104 code in a 2011 Ford Fusion?

- Causes can include a faulty mass air flow sensor, damaged wiring or connectors in the sensor circuit, a dirty air filter, or a vacuum leak.

4. How can I diagnose the P0104 code in my 2011 Ford Fusion?

- You can diagnose this code by visually inspecting the sensor and its connections, checking for any damaged wires or connectors, and using a multimeter to test the sensor's functionality.

5. Can I still drive my 2011 Ford Fusion with the P0104 code present?

- While you may still be able to drive the vehicle with this code, it is recommended to address the issue promptly to prevent further damage and maintain optimal performance.

6. Is it possible to reset the OBDII code P0104 in a 2011 Ford Fusion without fixing the underlying issue?

- Yes, you can clear the code with an OBDII scanner, but if the root cause is not addressed, the code is likely to reappear once the issue is detected again by the vehicle's system.

7. How much does it typically cost to repair the P0104 code in a 2011 Ford Fusion?

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

8. Can a DIY enthusiast repair the P0104 code in a 2011 Ford Fusion?

- Depending on your skill level and access to tools, you may be able to address some causes of the P0104 code yourself, such as replacing the air filter or cleaning the sensor. However, more complex issues may require professional assistance.

9. Will fixing the P0104 code improve the overall performance of my 2011 Ford Fusion?

- Yes, addressing the P0104 code and fixing the underlying issue can lead to improved engine performance, better fuel efficiency, and smoother operation of the vehicle.

10. How often does the P0104 code occur in a 2011 Ford Fusion?

- The occurrence of the P0104 code can vary depending on driving conditions, maintenance practices, and the overall health of the vehicle, but it is not an uncommon issue in Ford Fusion models.