AutoCodes – Ford – P0104 2007 Ford Fusion

P0104 2007 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 2007 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 2,834

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 2007 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 2007 Ford Fusion - Mass or Volume Air Flow 'A' Circuit Intermittent - AutoCodes.com — P0104 2007 Ford Fusion Code - Mass or Volume Air Flow 'A' Circuit Intermittent

What does this mean?

What are the Possible Causes of the DTC P0104 2007 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 2007 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 2007 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 P0104 2007 Ford Fusion Code

1. What are the common symptoms of OBDII code P0104 on a 2007 Ford Fusion?

- Common symptoms include rough idling, poor acceleration, decreased fuel efficiency, and stalling.

2. What does the OBDII code P0104 on a 2007 Ford Fusion indicate?

- The code P0104 indicates an issue with the Mass or Volume Air Flow 'A' Circuit Intermittent.

3. What are the possible causes of OBDII code P0104 on a 2007 Ford Fusion?

- Possible causes include a faulty mass air flow sensor, damaged wiring or connectors, a dirty air filter, or a vacuum leak.

4. How can I diagnose the Mass or Volume Air Flow 'A' Circuit Intermittent issue on a 2007 Ford Fusion?

- You can use a scan tool to read the OBDII code P0104, visually inspect the mass air flow sensor and related components, and perform a voltage test on the sensor.

5. Is it safe to continue driving a 2007 Ford Fusion with OBDII code P0104?

- It is not recommended to continue driving with this code as it can lead to poor engine performance and potential damage if left unresolved.

6. Can I repair OBDII code P0104 on a 2007 Ford Fusion myself?

- Depending on your skill level, you may be able to replace the mass air flow sensor, clean the air filter, or fix wiring issues yourself. However, professional diagnosis is recommended for accurate repair.

7. How much does it typically cost to repair OBDII code P0104 on a 2007 Ford Fusion?

- The cost of repairs can vary depending on the exact cause of the issue. Replacing a mass air flow sensor can cost between $100 to $300, while fixing wiring or connector issues may be less expensive.

8. Are there any maintenance tips to prevent OBDII code P0104 on a 2007 Ford Fusion?

- Regularly replacing the air filter, ensuring proper installation of the mass air flow sensor, and addressing any vacuum leaks promptly can help prevent this code from occurring.

9. Will resetting the OBDII code P0104 on a 2007 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 fixed, the code is likely to reoccur.

10. How long does it take to repair OBDII code P0104 on a 2007 Ford Fusion?

- The repair time can vary depending on the exact cause of the issue and the availability of parts. It may take anywhere from 30 minutes to a few hours to complete the repair.