AutoCodes – Ford – P0102 2018 Ford F150

P0102 2018 Ford F150 Code - Mass Or Volume Air Flow Sensor 'A' Circuit Low 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: P0102 2018 Ford F150 indicates Mass Or Volume Air Flow Sensor 'A' Circuit Low 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 193

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 P0102 2018 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 during Key ON, Engine Running (KOER), the Mass Airflow Sensor output changes below a minimum calibrated limit for greater than a set period of time.

OBDII Code P0102 2018 Ford F150 - Mass Or Volume Air Flow Sensor 'A' Circuit Low Input - AutoCodes.com — P0102 2018 Ford F150 Code - Mass Or Volume Air Flow Sensor 'A' Circuit Low Input

What does this mean?

What are the Possible Causes of the DTC P0102 2018 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 P0102 2018 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 P0102 2018 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 P0102 2018 Ford F150 Code

1. What are the common symptoms of OBDII code P0102 in a 2018 Ford F150?

- Common symptoms include poor engine performance, reduced fuel efficiency, stalling, hesitation during acceleration, and the illumination of the check engine light.

2. What does the OBDII code P0102 on a 2018 Ford F150 indicate?

- The code P0102 indicates a low input signal from the Mass or Volume Air Flow Sensor 'A' circuit in the vehicle's engine management system.

3. What are the possible causes of OBDII code P0102 in a 2018 Ford F150?

- Possible causes include a faulty Mass Air Flow (MAF) sensor, damaged or dirty air filter, vacuum leaks, wiring issues, or a problem with the sensor's electrical circuit.

4. How can I diagnose the OBDII code P0102 in my 2018 Ford F150?

- You can diagnose the code by checking the MAF sensor for contamination or damage, inspecting the air filter, conducting a visual inspection of the wiring and connectors, and using a scan tool to monitor sensor data.

5. Can I still drive my 2018 Ford F150 with the OBDII code P0102?

- It is not recommended to drive with the code P0102 as it can lead to poor engine performance and potential damage. It is best to address the issue promptly.

6. How can I repair OBDII code P0102 in a 2018 Ford F150?

- Repair options include cleaning or replacing the MAF sensor, replacing the air filter, fixing any vacuum leaks, checking and repairing any damaged wiring, and clearing the error code with a scan tool.

7. Will resetting the check engine light fix OBDII code P0102 in a 2018 Ford F150?

- Resetting the check engine light may temporarily clear the code, but it will likely return if the underlying issue causing P0102 is not resolved.

8. Is it possible to prevent OBDII code P0102 in a 2018 Ford F150?

- Regular maintenance, such as replacing the air filter at recommended intervals, keeping the MAF sensor clean, and addressing any engine issues promptly, can help prevent code P0102.

9. Can a DIY enthusiast fix OBDII code P0102 in a 2018 Ford F150?

- Depending on the individual's skill level, DIY enthusiasts can attempt to fix P0102 by following repair guides, using basic tools, and being cautious when working with the vehicle's electrical components.

10. How much does it cost to repair OBDII code P0102 in a 2018 Ford F150?

- The cost of repairing P0102 can vary depending on the root cause of the issue, the need for replacement parts, and whether the repair is done professionally or DIY. Costs can range from a few dollars for cleaning supplies to a few hundred dollars for parts and labor.