AutoCodes – Hyundai – P0103 Hyundai

P0103 Hyundai 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 Hyundai 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.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 32,646
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on May 19, 2022
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Code P0103 Hyundai 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 Hyundai - Mass or Volume Air Flow Circuit High Input - AutoCodes.com
P0103 Hyundai Code - Mass or Volume Air Flow Circuit High Input

What are the Possible Causes of the DTC P0103 Hyundai?

  • 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 Hyundai?

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.

Code Tech Notes

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0103 Hyundai 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 P0103 Hyundai 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 P0103 Hyundai Code

1. What are the common symptoms of OBDII code P0103 in a Hyundai?

- Common symptoms include a decrease in engine performance, rough idling, stalling, and an illuminated check engine light.

2. What does the OBDII code P0103 "Mass or Volume Air Flow Circuit High Input" mean for a Hyundai?

- This code indicates that the mass air flow (MAF) sensor is detecting a higher than expected voltage input from the air flow circuit.

3. What are the possible causes of OBDII code P0103 in a Hyundai?

- The potential causes include a faulty MAF sensor, air intake leaks, a clogged air filter, issues with the air flow sensor circuit, or a problem with the engine control module (ECM).

4. How can I diagnose the OBDII code P0103 in my Hyundai?

- Diagnosing this code typically involves checking the MAF sensor for proper operation, inspecting the air intake system for leaks, testing the air flow sensor circuit, and scanning the ECM for any related fault codes.

5. Can I continue driving my Hyundai with OBDII code P0103?

- It is not recommended to drive your vehicle with this code present, as it can lead to further engine damage and potential safety risks. It is best to address the issue promptly.

6. How can I repair OBDII code P0103 in my Hyundai?

- Repairs may involve replacing the MAF sensor, repairing any air intake leaks, cleaning or replacing the air filter, checking and repairing the sensor circuit, or reprogramming the ECM if necessary.

7. Are there any DIY tips for fixing OBDII code P0103 in a Hyundai?

- DIY tips include visually inspecting the air intake system for leaks, cleaning the MAF sensor with a specialized cleaner, and checking the air filter for clogs or debris.

8. Will resetting the OBDII code P0103 in my Hyundai make it go away permanently?

- Resetting the code may temporarily clear the check engine light, but if the underlying issue causing the code is not addressed, it is likely to reappear.

9. How much does it cost to fix OBDII code P0103 in a Hyundai?

- The cost of fixing this code can vary depending on the specific cause and the labor rates of the repair shop. It may range from a simple DIY fix to a more costly repair involving sensor replacement.

10. Can a Hyundai dealership service center help me with OBDII code P0103?

- Yes, Hyundai dealership service centers have trained technicians and specialized diagnostic equipment to accurately diagnose and repair OBDII codes like P0103.

Discuss the causes and fixes for P0103 Hyundai OBDII Code

  • Engine stalling and RPM can only reach 3,000 or less. Scanned with OBD scanner and showed DTC Codes P0101 and PO103. Replaced filter and cleaned MAF sensor but the problem still exist. Harness is good and working, replaced MAF sensor with new one but the problem is still there. What should I check next? Thank you!

  • Let me check if I can find more information, what model and year is your Hyundai?

  • Hyundai Grand Starex 2009. VGT CRDI A/T. Thanks.

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