AutoCodes – Nissan – P0102 2007 Nissan Pathfinder

P0102 2007 Nissan Pathfinder 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 2007 Nissan Pathfinder 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 4,770

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 2007 Nissan Pathfinder 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 2007 Nissan Pathfinder - Mass or Volume Air Flow Circuit Low Input - AutoCodes.com — P0102 2007 Nissan Pathfinder Code - Mass or Volume Air Flow Circuit Low Input

What does this mean?

What are the Possible Causes of the DTC P0102 2007 Nissan Pathfinder?

Dirty Air Filter
Dirty Mass Air Flow (MAF) Sensor
Intake air leaks
Faulty Mass Air Flow (MAF) Sensor
Mass Air Flow (MAF) Sensor harness is open or shorted
Mass Air Flow (MAF) Sensor circuit poor electrical connection

How to Fix the DTC P0102 2007 Nissan Pathfinder?

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 2007 Nissan Pathfinder 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 2007 Nissan Pathfinder Code

1. What are the common symptoms of OBDII code P0102 on a 2007 Nissan Pathfinder?

- Common symptoms include poor fuel economy, rough idling, stalling, lack of power, and the Check Engine Light turning on.

2. What does the OBDII code P0102 for a 2007 Nissan Pathfinder indicate?

- The code P0102 indicates that there is a low input signal coming from the Mass Air Flow (MAF) sensor circuit.

3. What are the possible causes of OBDII code P0102 on a 2007 Nissan Pathfinder?

- Possible causes include a dirty or faulty MAF sensor, a vacuum leak, a clogged air filter, or issues with the wiring or connectors in the MAF circuit.

4. How can I diagnose the OBDII code P0102 on my 2007 Nissan Pathfinder?

- You can diagnose the code by inspecting the MAF sensor, checking for vacuum leaks, testing the MAF sensor's voltage, and scanning the vehicle's computer for other related codes.

5. Can I drive my 2007 Nissan Pathfinder with OBDII code P0102?

- It is not recommended to drive your vehicle with the code P0102 as it can lead to poor performance and potential engine damage. It's best to address the issue promptly.

6. How can I repair OBDII code P0102 on my 2007 Nissan Pathfinder?

- Repair options include cleaning or replacing the MAF sensor, fixing any vacuum leaks, replacing the air filter, and ensuring the wiring and connectors in the MAF circuit are in good condition.

7. Will resetting the Check Engine Light resolve OBDII code P0102 on my 2007 Nissan Pathfinder?

- Resetting the Check Engine Light may temporarily clear the code, but it will not fix the underlying issue causing the code to appear. Proper diagnosis and repair are necessary.

8. Can a clogged air filter trigger OBDII code P0102 on a 2007 Nissan Pathfinder?

- Yes, a clogged air filter can disrupt the airflow to the MAF sensor, leading to incorrect readings and triggering the code P0102.

9. How long does it take to repair OBDII code P0102 on a 2007 Nissan Pathfinder?

- The repair time can vary depending on the actual cause of the issue. It may take anywhere from 30 minutes to a few hours to diagnose and fix the problem.

10. Is it necessary to take my 2007 Nissan Pathfinder to a mechanic for OBDII code P0102 repair?

- While some DIY enthusiasts may be able to address the issue themselves, if you are unsure about the diagnosis or repair process, it is recommended to seek the help of a qualified mechanic to properly resolve the code P0102.