AutoCodes – Ford – P0103 2020 Ford F150

P0103 2020 Ford F150 Code - Mass Or Volume Air Flow Sensor 'A' Circuit High Input

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: P0103 2020 Ford F150 indicates Mass Or Volume Air Flow Sensor 'A' Circuit High Input.
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 186

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
Step-by-Step Diagnostic Guide
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code P0103 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 the Mass Airflow Sensor output changes above a maximum calibrated limit while the engine is running.

OBDII Code P0103 2020 Ford F150 - Mass Or Volume Air Flow Sensor 'A' Circuit High Input - AutoCodes.com — P0103 2020 Ford F150 Code - Mass Or Volume Air Flow Sensor 'A' Circuit High Input

What does this mean?

What are the Possible Causes of the DTC P0103 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 P0103 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 P0103 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.

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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 P0103 2020 Ford F150 Code

1. What does the OBDII code P0103 mean on a 2020 Ford F150?

Code P0103 indicates that the Mass Air Flow (MAF) sensor circuit is sending a higher voltage signal than expected, suggesting an unusually high air volume reading.

2. What are common symptoms of code P0103 in a 2020 Ford F150?

Symptoms include a check engine light, rough idling, trouble starting, stalling, and decreased fuel efficiency.

3. What can cause a P0103 code to appear on a 2020 Ford F150?

Causes might include a dirty or faulty MAF sensor, a vacuum leak, issues with the MAF sensor electrical connections, or a problem with the ECU.

4. How can I troubleshoot and fix code P0103 on my 2020 Ford F150?

Start by inspecting the MAF sensor for dirt or damage and cleaning it if necessary. Check for any loose or corroded connections and repair any found issues. If these steps don't resolve the problem, consider replacing the MAF sensor.

5. Is it safe to drive my 2020 Ford F150 with a P0103 code?

While you can drive with this code, it's not advisable as it can lead to poor engine performance and increased fuel consumption. Addressing the issue promptly is recommended to avoid potential further damage.

6. What tools are needed to diagnose the P0103 code on a 2020 Ford F150?

A diagnostic OBDII scanner, a digital multimeter, and basic hand tools are typically required to diagnose and address this issue.

7. Could a P0103 code affect the fuel economy of a 2020 Ford F150?

Yes, a faulty MAF sensor can send incorrect air flow readings to the ECU, leading to improper air-fuel mixture adjustments and reduced fuel efficiency.

8. How much does it typically cost to resolve a P0103 code in a 2020 Ford F150?

Costs can vary widely but expect to pay between $80 and $300 depending on whether you need to clean or replace the MAF sensor and the labor rates of your mechanic.

9. Could ignoring a P0103 code lead to other engine problems in a 2020 Ford F150?

Yes, prolonged operation with a faulty MAF sensor can lead to other engine issues such as damaged spark plugs, overheating, or even catalytic converter failure due to improper air-fuel ratios.