AutoCodes – Infiniti – P0103 2006 Infiniti G35

P0103 2006 Infiniti G35 Code - Mass Air Flow Sensor 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 2006 Infiniti G35 indicates Mass Air Flow Sensor 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 5,318

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 May 18, 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 2006 Infiniti G35 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 2006 Infiniti G35 - Mass Air Flow Sensor Circuit High Input - AutoCodes.com — P0103 2006 Infiniti G35 Code - Mass Air Flow Sensor Circuit High Input

What does this mean?

What are the Possible Causes of the DTC P0103 2006 Infiniti G35?

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 2006 Infiniti G35?

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 2006 Infiniti G35 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 2006 Infiniti G35 Code

1. What are the common symptoms of OBDII code P0103 in a 2006 Infiniti G35?

- Common symptoms include poor fuel economy, rough idling, engine stalling, and a noticeable decrease in engine performance.

2. What does the OBDII code P0103 indicate in a 2006 Infiniti G35?

- OBDII code P0103 indicates a high input signal from the mass air flow (MAF) sensor circuit in the 2006 Infiniti G35.

3. What are the possible causes of OBDII code P0103 in a 2006 Infiniti G35?

- Possible causes include a faulty MAF sensor, a dirty or contaminated MAF sensor, a vacuum leak, a damaged air intake system, or issues with the wiring or connectors in the MAF sensor circuit.

4. How can I diagnose OBDII code P0103 in my 2006 Infiniti G35?

- You can diagnose OBDII code P0103 by visually inspecting the MAF sensor and its connections, checking for any vacuum leaks, performing a scan tool test, and using a multimeter to test the MAF sensor's voltage.

5. Can I drive my 2006 Infiniti G35 with OBDII code P0103?

- It is not recommended to drive your vehicle with OBDII code P0103 as it can lead to engine performance issues and potential damage if left unresolved.

6. How do I repair OBDII code P0103 in my 2006 Infiniti G35?

- To repair OBDII code P0103, you may need to clean or replace the MAF sensor, address any vacuum leaks, repair damaged wiring or connectors, and reset the fault code using an OBDII scanner.

7. Is it possible to clean the MAF sensor to resolve OBDII code P0103 in a 2006 Infiniti G35?

- Yes, cleaning the MAF sensor with a specialized MAF sensor cleaner can sometimes resolve OBDII code P0103 if the issue is caused by dirt or contamination on the sensor.

8. How much does it cost to replace a MAF sensor in a 2006 Infiniti G35 to fix OBDII code P0103?

- The cost of replacing a MAF sensor in a 2006 Infiniti G35 can vary depending on the brand of the sensor and labor costs, but it typically ranges from $100 to $300.

9. Will resetting the fault code fix OBDII code P0103 in my 2006 Infiniti G35?

- Resetting the fault code may temporarily clear the code, but it will not fix the underlying issue causing OBDII code P0103. It is important to diagnose and repair the root cause of the problem.

10. Can a clogged air filter cause OBDII code P0103 in a 2006 Infiniti G35?

- A clogged air filter can restrict airflow and affect the MAF sensor's readings, potentially leading to OBDII code P0103 in a 2006 Infiniti G35. Regular air filter maintenance is recommended to prevent such issues.