AutoCodes – Nissan – P0102 2004 Nissan Maxima

P0102 2004 Nissan Maxima 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 2004 Nissan Maxima 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.

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Code Popularity 7,567

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 P0102 2004 Nissan Maxima 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 2004 Nissan Maxima - Mass or Volume Air Flow Circuit Low Input - AutoCodes.com — P0102 2004 Nissan Maxima Code - Mass or Volume Air Flow Circuit Low Input

What does this mean?

What are the Possible Causes of the DTC P0102 2004 Nissan Maxima?

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 2004 Nissan Maxima?

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 2004 Nissan Maxima 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 2004 Nissan Maxima Code

1. What are the common symptoms of OBDII code P0102 on a 2004 Nissan Maxima?

- Common symptoms include poor engine performance, hesitation or stalling, decreased fuel efficiency, and a check engine light illuminated on the dashboard.

2. What does the OBDII code P0102 "Mass or Volume Air Flow Circuit Low Input" mean for a 2004 Nissan Maxima?

- This code indicates that the signal from the mass airflow sensor (MAF) is lower than expected, potentially causing issues with air-fuel mixture and engine performance.

3. What are some possible causes of OBDII code P0102 on a 2004 Nissan Maxima?

- Common causes include a dirty or faulty MAF sensor, vacuum leaks, wiring issues, intake air leaks, or a clogged air filter.

4. How can I diagnose the OBDII code P0102 on my 2004 Nissan Maxima?

- You can diagnose this code by inspecting the MAF sensor for dirt or damage, checking for any disconnected or damaged wiring, and using a scan tool to monitor MAF sensor data.

5. Can I drive my 2004 Nissan Maxima with OBDII code P0102?

- It is not recommended to drive the vehicle with this code present, as it can lead to poor engine performance and potential damage if left unresolved.

6. How can I repair OBDII code P0102 on my 2004 Nissan Maxima?

- Repair options may include cleaning or replacing the MAF sensor, repairing any vacuum or intake air leaks, checking and repairing wiring issues, or replacing the air filter.

7. Is it possible to clear the OBDII code P0102 on a 2004 Nissan Maxima without fixing the issue?

- Clearing the code without addressing the underlying problem will only temporarily turn off the check engine light, but the issue causing the code will persist.

8. Will a dirty air filter cause OBDII code P0102 on a 2004 Nissan Maxima?

- A dirty air filter can restrict airflow and potentially lead to this code, as it affects the readings of the MAF sensor. It is recommended to check and replace the air filter if dirty.

9. What is the typical cost to repair OBDII code P0102 on a 2004 Nissan Maxima?

- The cost of repair can vary depending on the cause of the issue, but it may range from $100 to $400 for parts and labor, with the MAF sensor replacement being a common fix.

10. How often does OBDII code P0102 occur on a 2004 Nissan Maxima?

- This code can occur sporadically due to various factors, but it is a relatively common issue related to the MAF sensor and airflow in the engine on the 2004 Nissan Maxima model.