AutoCodes – Infiniti – P0102 2003 Infiniti G35

P0102 2003 Infiniti G35 Code - Mass or Volume Air Flow Circuit Low 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: P0102 2003 Infiniti G35 indicates Mass or Volume Air Flow Circuit Low 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.

Save to My Repairs Step-by-Step Diagnostic Guide My Repairs

AI answers can be wrong. Verify repairs with testing. Open full chat

Code Popularity 11,653

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
Add Comment

💬 Need more help? Ask Coddy for instant answers — it's free!

Code P0102 2003 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 less than the factory specifications.

OBDII Code P0102 2003 Infiniti G35 - Mass or Volume Air Flow Circuit Low Input - AutoCodes.com — P0102 2003 Infiniti G35 Code - Mass or Volume Air Flow Circuit Low Input

What does this mean?

What are the Possible Causes of the DTC P0102 2003 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 P0102 2003 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 P0102 2003 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.

Need more information about the P0102 2003 Infiniti G35 code?

Need more information on how to fix the P0102 2003 Infiniti G35 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P0102 2003 Infiniti G35 code diagnosed by a professional: Find a repair shop in your area

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 2003 Infiniti G35 Code

1. What are the common symptoms of OBDII code P0102 in a 2003 Infiniti G35?

The common symptoms of P0102 in a 2003 Infiniti G35 include poor fuel economy, rough idle, stalling, and a lack of power.

2. What does the OBDII code P0102 on a 2003 Infiniti G35 indicate?

Code P0102 indicates that the Mass or Volume Air Flow Circuit has a low input signal, which can lead to incorrect air-fuel mixture in the engine.

3. What are the possible causes of OBDII code P0102 in a 2003 Infiniti G35?

Common causes of P0102 in a 2003 Infiniti G35 include a dirty or faulty mass air flow sensor, a vacuum leak, a clogged air filter, or issues with the wiring or connectors.

4. How can I diagnose the OBDII code P0102 in my 2003 Infiniti G35?

To diagnose P0102, you can start by inspecting the mass air flow sensor, checking for vacuum leaks, cleaning or replacing the air filter, and testing the wiring and connectors for any faults.

5. Can I continue driving my 2003 Infiniti G35 with OBDII code P0102?

It is not recommended to continue driving your vehicle with code P0102, as it can lead to poor engine performance and potential damage over time. It is best to address the issue promptly.

6. How can I repair OBDII code P0102 in my 2003 Infiniti G35?

Repairing P0102 may involve cleaning or replacing the mass air flow sensor, fixing any vacuum leaks, replacing the air filter, and ensuring the wiring and connectors are in good condition.

7. Will resetting the OBDII code P0102 in my 2003 Infiniti G35 make it go away permanently?

Resetting the code may temporarily turn off the check engine light, but if the underlying issue causing P0102 is not addressed, the code is likely to reappear. It's important to diagnose and repair the problem.

8. Can a clogged air filter cause OBDII code P0102 in a 2003 Infiniti G35?

Yes, a clogged air filter can restrict airflow to the engine, leading to incorrect readings by the mass air flow sensor and triggering code P0102 in a 2003 Infiniti G35.

9. How important is the mass air flow sensor in the operation of a 2003 Infiniti G35?

The mass air flow sensor is crucial in measuring the amount of air entering the engine, which helps in determining the correct air-fuel mixture for efficient combustion. A faulty sensor can lead to various performance issues.

10. Can extreme weather conditions affect OBDII code P0102 in a 2003 Infiniti G35?

Extreme weather conditions like extreme heat or cold can potentially impact the performance of the mass air flow sensor, leading to erroneous readings and triggering code P0102 in a 2003 Infiniti G35.