AutoCodes – Ford – P0102 2017 Ford F150

P0102 2017 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 2017 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 207

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 2017 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 2017 Ford F150 - Mass Or Volume Air Flow Sensor 'A' Circuit Low Input - AutoCodes.com — P0102 2017 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 2017 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 2017 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 2017 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 2017 Ford F150 Code

1. What does the OBDII code P0102 mean on a 2017 Ford F150?

P0102 indicates that the Mass Air Flow (MAF) sensor is reporting a low voltage signal to the Powertrain Control Module (PCM), suggesting insufficient airflow measurement.

2. What are the common symptoms of a P0102 code on a 2017 Ford F150?

Symptoms may include poor engine performance, rough idling, reduced fuel efficiency, hesitation during acceleration, or the Check Engine Light being illuminated.

3. What causes the P0102 code on a 2017 Ford F150?

Common causes include a dirty or faulty MAF sensor, a vacuum leak, a clogged air filter, damaged wiring or connectors, or an issue with the PCM.

4. Can a dirty air filter trigger the P0102 code on a 2017 Ford F150?

Yes, a clogged or dirty air filter can restrict airflow, causing the MAF sensor to report a low input signal to the PCM.

5. How can I fix the P0102 code on my 2017 Ford F150?

Start by cleaning the MAF sensor, replacing a dirty air filter, inspecting and repairing any damaged wiring or connectors, and ensuring there are no vacuum leaks.

6. Is it safe to drive a 2017 Ford F150 with the P0102 code?

Driving with the P0102 code is possible but not recommended, as it can lead to poor fuel economy, reduced power, and potential damage to other engine components if left unresolved.

7. How do I clean the MAF sensor to fix the P0102 code?

Use MAF sensor cleaner spray and carefully clean the sensor without touching its sensitive elements. Allow it to dry completely before reinstalling.

8. Can a vacuum leak cause the P0102 code on a 2017 Ford F150?

Yes, a vacuum leak can disrupt the airflow measurement, leading to incorrect data from the MAF sensor and triggering the P0102 code.

9. How do I test the MAF sensor on a 2017 Ford F150?

You can test the MAF sensor using a multimeter to check for proper voltage and continuity, or use a scan tool to monitor live data for airflow readings.

10. Could a faulty PCM cause the P0102 code on my 2017 Ford F150?

While rare, a malfunctioning PCM can cause the P0102 code, but this should only be considered after ruling out other common causes like the MAF sensor or wiring issues.