AutoCodes – Nissan – P0102 2011 Nissan Pathfinder

P0102 2011 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 2011 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 4,707

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 2011 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 2011 Nissan Pathfinder - Mass or Volume Air Flow Circuit Low Input - AutoCodes.com — P0102 2011 Nissan Pathfinder Code - Mass or Volume Air Flow Circuit Low Input

What does this mean?

What are the Possible Causes of the DTC P0102 2011 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 2011 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 2011 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.

Need more information about the P0102 2011 Nissan Pathfinder 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 P0102 2011 Nissan Pathfinder Code

What does the OBDII code P0102 mean for a 2011 Nissan Pathfinder?

P0102 indicates that the Engine Control Module (ECM) has detected a low input signal from the Mass Air Flow (MAF) sensor, which measures the amount of air entering the engine.

What are the common symptoms associated with the P0102 code?

Common symptoms include poor engine performance, reduced fuel economy, rough idle, stalling, and the Check Engine Light being illuminated.

What could cause the P0102 code to trigger in a Nissan Pathfinder?

Potential causes include a faulty MAF sensor, damaged wiring or connectors, a dirty air filter, vacuum leaks, or issues with the ECM itself.

How can I diagnose the P0102 code?

Start by inspecting the MAF sensor and its wiring for damage or disconnection. Clean the MAF sensor with appropriate cleaner, check for vacuum leaks, and ensure the air filter is clean.

What is the best way to repair the P0102 code?

The most effective repair is to replace or clean the MAF sensor if it's confirmed to be faulty. Additionally, fixing any wiring issues or vacuum leaks can help resolve the code.

Can I drive my Nissan Pathfinder with the P0102 code?

While it might be possible to drive the vehicle, it is not recommended, as it can lead to poor performance and potentially cause further damage to the engine or emissions system.

Are there any temporary fixes for the P0102 code?

Temporarily, you can try cleaning the MAF sensor or disconnecting the battery to reset the ECM, but these are not permanent solutions and the code may reappear.

How can I prevent the P0102 code from occurring in the future?

Regular maintenance, including cleaning or replacing the air filter, inspecting the MAF sensor, and checking for vacuum leaks, can help prevent recurrence of the P0102 code.

What is the average cost to repair the P0102 code?

Repair costs can vary widely, but replacing a MAF sensor typically ranges from $100 to $300, depending on parts and labor costs.