AutoCodes – Ford – P0103 1998 Ford F150

P0103 1998 Ford F150 Code - Mass or Volume Air Flow Circuit High Input

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: P0103 1998 Ford F150 indicates Mass or Volume Air Flow Circuit High Input.
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 4,449

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 Oct 07, 2022

Description
Step-by-Step Diagnostic Guide
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code P0103 1998 Ford F150 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 that the MAF Sensor Signal is more than the factory specifications.

OBDII Code P0103 1998 Ford F150 - Mass or Volume Air Flow Circuit High Input - AutoCodes.com — P0103 1998 Ford F150 Code - Mass or Volume Air Flow Circuit High Input

What does this mean?

What are the Possible Causes of the DTC P0103 1998 Ford F150?

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 P0103 1998 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 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 P0103 1998 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 1998 Ford F150 Code

1. What are common symptoms of OBDII code P0103 on a 1998 Ford F150?

- Common symptoms include poor engine performance, hesitation during acceleration, stalling, and an illuminated check engine light.

2. What does the OBDII code P0103 for a 1998 Ford F150 indicate?

- The code P0103 indicates a high input in the mass or volume air flow circuit.

3. What are possible causes of OBDII code P0103 on a 1998 Ford F150?

- Possible causes include a faulty mass air flow (MAF) sensor, an intake air leak, a clogged air filter, or issues with the wiring or connectors.

4. How can I diagnose the cause of OBDII code P0103 on my 1998 Ford F150?

- You can start by inspecting the MAF sensor, checking for any visible damage or contamination. Test the sensor using a multimeter and inspect the air intake system for leaks.

5. Can a dirty air filter trigger OBDII code P0103 on a 1998 Ford F150?

- Yes, a clogged or dirty air filter can disrupt the air flow entering the engine, leading to incorrect readings by the MAF sensor and triggering the P0103 code.

6. How can I repair OBDII code P0103 on a 1998 Ford F150?

- Repair options include cleaning or replacing the MAF sensor, addressing any air intake leaks, replacing a clogged air filter, and checking the wiring and connectors for any issues.

7. Is it safe to continue driving with OBDII code P0103 on a 1998 Ford F150?

- It is not recommended to drive with the P0103 code as it can result in poor engine performance, reduced fuel efficiency, and potential further damage to the vehicle.

8. Can a bad MAF sensor cause other issues besides triggering OBDII code P0103 on a 1998 Ford F150?

- Yes, a faulty MAF sensor can also cause issues such as rough idling, engine misfires, and difficulty starting the vehicle.

9. How much does it typically cost to repair OBDII code P0103 on a 1998 Ford F150?

- The cost of repairing the P0103 code can vary depending on the specific issue, but it may range from $100 to $500, including parts and labor.

10. Will resetting the check engine light resolve OBDII code P0103 on a 1998 Ford F150?

- Resetting the check engine light will only temporarily clear the code. To address the underlying issue triggering the P0103 code, proper diagnosis and repair are necessary.