AutoCodes – Nissan – P0102 2010 Nissan Altima Sedan

P0102 2010 Nissan Altima Sedan 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 2010 Nissan Altima Sedan 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 5,520

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 2010 Nissan Altima Sedan 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 2010 Nissan Altima Sedan - Mass or Volume Air Flow Circuit Low Input - AutoCodes.com — P0102 2010 Nissan Altima Sedan Code - Mass or Volume Air Flow Circuit Low Input

What does this mean?

What are the Possible Causes of the DTC P0102 2010 Nissan Altima Sedan?

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 2010 Nissan Altima Sedan?

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.

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What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0102 2010 Nissan Altima Sedan 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 2010 Nissan Altima Sedan Code

1. What are the common symptoms of OBDII code P0102 on a 2010 Nissan Altima Sedan?

- Common symptoms include poor acceleration, rough idling, stalling, decreased fuel efficiency, and the Check Engine light being illuminated.

2. What does the OBDII code P0102 "Mass or Volume Air Flow Circuit Low Input" indicate on a 2010 Nissan Altima Sedan?

- This code indicates that the engine control module (ECM) has detected a low input signal from the mass airflow (MAF) sensor.

3. What are the possible causes of OBDII code P0102 on a 2010 Nissan Altima Sedan?

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

4. How can I diagnose the OBDII code P0102 on a 2010 Nissan Altima Sedan?

- To diagnose this code, you can start by inspecting the MAF sensor for any dirt or debris, checking for vacuum leaks, testing the MAF sensor's voltage, and inspecting the wiring and connectors for any damage.

5. Can I drive my 2010 Nissan Altima Sedan with the OBDII code P0102 active?

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

6. How do I repair OBDII code P0102 on a 2010 Nissan Altima Sedan?

- Repairing this code typically involves cleaning or replacing the MAF sensor, fixing any vacuum leaks, replacing the air filter, or repairing any damaged wiring or connectors.

7. Will resetting the Check Engine light resolve OBDII code P0102 on a 2010 Nissan Altima Sedan?

- Simply resetting the Check Engine light will not resolve the underlying issue causing the code. It is important to diagnose and repair the root cause of the problem.

8. Can a clogged air filter trigger OBDII code P0102 on a 2010 Nissan Altima Sedan?

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

9. Is it possible for a dirty MAF sensor to cause OBDII code P0102 on a 2010 Nissan Altima Sedan?

- Yes, a dirty or contaminated MAF sensor can provide inaccurate airflow readings to the ECM, resulting in the triggering of code P0102.

10. How much does it typically cost to repair OBDII code P0102 on a 2010 Nissan Altima Sedan?

- The cost of repairing this code can vary depending on the specific issue. It may range from a simple DIY cleaning of the MAF sensor to a more involved repair involving sensor replacement or professional diagnostic services.