AutoCodes – Ford – P0104 2020 Ford F150

P0104 2020 Ford F150 Code - Mass Or Volume Air Flow Sensor 'A' Circuit Intermittent

Quick Answer

The Mass Airflow (MAF) Sensor uses a hot wire sensing element to measure the amount of air entering the engine. Common causes include Dirty Air Filter, Faulty Mass Airflow (MAF) 'A' Sensor, Mass Airflow 'A' Sensor harness is open or shorted. 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 2020 Ford F150 indicates Mass Or Volume Air Flow Sensor 'A' Circuit Intermittent.
Common causes: Common causes include Dirty Air Filter, Faulty Mass Airflow (MAF) 'A' Sensor, Mass Airflow 'A' Sensor harness is open or shorted.
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 195

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 Sep 21, 2023

Description
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code P0104 2020 Ford F150 Description

The Mass Airflow (MAF) Sensor uses a hot wire sensing element to measure the amount of air entering the engine. The air passing over the hot wire causes it to cool. This hot wire is maintained at 200°C (392°F) above the ambient temperature as measured by a constant cold wire. The current required to maintain the temperature of the hot wire is proportional to the mass airflow. The MAF Sensor then outputs a signal to the Powertrain Control Module (PCM) proportional to the intake air mass. The PCM calculates the required fuel injector pulse width in order to provide the desired air to fuel ratio. The MAF sensor is located near the air cleaner assembly. Most MAF sensors have an integrated Intake Air Temperature (IAT) sensor. This Diagnostic Trouble Code (DTC) will be set when a concern exists in the MAF circuit, or the air tube containing the MAF Sensor, causing an incorrect sensor output reading.

OBDII Code P0104 2020 Ford F150 - Mass Or Volume Air Flow Sensor 'A' Circuit Intermittent - AutoCodes.com — P0104 2020 Ford F150 Code - Mass Or Volume Air Flow Sensor 'A' Circuit Intermittent

What does this mean?

What are the Possible Causes of the DTC P0104 2020 Ford F150?

Dirty Air Filter
Faulty Mass Airflow (MAF) 'A' Sensor
Mass Airflow 'A' Sensor harness is open or shorted
Mass Airflow 'A' Sensor circuit poor electrical connection

How to Fix the DTC P0104 2020 Ford F150?

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-compressed air or a Mass Air Flow Sensor Cleaner. Reset the code and drive the 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 2020 Ford F150 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 2020 Ford F150 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 2020 Ford F150 Code

What does the OBDII code P0104 mean for a 2020 Ford F150?

P0104 indicates an intermittent issue with the Mass or Volume Air Flow Sensor 'A' circuit, meaning the sensor is not providing consistent data to the Engine Control Unit (ECU).

What are the common symptoms of code P0104 in a Ford F150?

Common symptoms include rough idling, poor acceleration, decreased fuel efficiency, and the check engine light being illuminated.

What can cause the P0104 code to trigger?

Causes may include a faulty mass air flow (MAF) sensor, damaged wiring or connectors, air intake leaks, or issues with the ECU.

How can I diagnose the P0104 code?

Start by visually inspecting the MAF sensor and its wiring for damage or loose connections. Use a multimeter to check the sensor's voltage and consult a repair manual for specific testing procedures.

What are some repair tips for fixing the P0104 code?

Repair tips include cleaning the MAF sensor with appropriate electrical cleaner, replacing a faulty sensor, repairing any damaged wiring, and ensuring all connections are secure.

Is it safe to drive with the P0104 code?

While it may be possible to drive with this code, it is not advisable as it can lead to further engine performance issues and reduced fuel efficiency.

How much does it typically cost to repair the P0104 code?

Repair costs can vary widely, but replacing a MAF sensor typically ranges from $150 to $300, including parts and labor, depending on the repair shop.

Can I clear the P0104 code without fixing the issue?

Yes, you can clear the code using an OBDII scanner, but if the underlying problem isn't resolved, the code will likely return.

Will replacing the MAF sensor fix the P0104 code?

Replacing the MAF sensor can often resolve the P0104 code if the sensor is faulty, but it's important to diagnose the entire circuit to ensure there are no other underlying issues.