AutoCodes – Nissan – P0102 2009 Nissan Versa

P0102 2009 Nissan Versa 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 2009 Nissan Versa 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 4,999

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 2009 Nissan Versa 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 2009 Nissan Versa - Mass or Volume Air Flow Circuit Low Input - AutoCodes.com — P0102 2009 Nissan Versa Code - Mass or Volume Air Flow Circuit Low Input

What does this mean?

What are the Possible Causes of the DTC P0102 2009 Nissan Versa?

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 2009 Nissan Versa?

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 2009 Nissan Versa 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 2009 Nissan Versa Code

1. What does OBDII code P0102 for a 2009 Nissan Versa mean?

The code P0102 indicates a low input in the mass or volume air flow circuit.

2. What are the common symptoms of OBDII code P0102 on a 2009 Nissan Versa?

Common symptoms include poor acceleration, rough idling, stalling, decreased fuel efficiency, and the Check Engine light turning on.

3. What are the possible causes of OBDII code P0102 on a 2009 Nissan Versa?

Potential causes include a faulty mass air flow sensor, vacuum leaks, clogged air filter, issues with the intake air temperature sensor, or wiring/connectivity problems.

4. How can I diagnose the OBDII code P0102 on my 2009 Nissan Versa?

You can start by inspecting the mass air flow sensor, checking for any visible damage or contamination. Additionally, you can use a multimeter to test the sensor's voltage output.

5. Can a dirty air filter trigger the OBDII code P0102 on a 2009 Nissan Versa?

Yes, a clogged or dirty air filter can disrupt the proper airflow readings, leading to the code P0102. Regularly replacing the air filter is a simple maintenance step to prevent this issue.

6. Is it safe to drive with OBDII code P0102 present on a 2009 Nissan Versa?

While it may be possible to drive with the code present, it is not recommended. Continuing to drive with a malfunctioning mass air flow sensor can lead to further engine issues and decreased performance.

7. How can I repair OBDII code P0102 on a 2009 Nissan Versa?

Repair options include cleaning or replacing the mass air flow sensor, fixing any vacuum leaks, ensuring proper sensor connections, and replacing the air filter if necessary.

8. Can a DIY enthusiast fix OBDII code P0102 on a 2009 Nissan Versa?

Depending on your skill level and access to tools, some DIY enthusiasts may be able to address the issue themselves by following repair guides or tutorials specific to the Nissan Versa.

9. Will resetting the OBDII code P0102 on a 2009 Nissan Versa make it go away permanently?

Simply resetting the code without addressing the underlying issue will not solve the problem. It is essential to diagnose the root cause and perform the necessary repairs to prevent the code from reappearing.

10. How much does it typically cost to fix OBDII code P0102 on a 2009 Nissan Versa?

The cost of fixing P0102 can vary depending on the specific cause of the issue. Generally, it may range from $100 to $500, including parts and labor, if you take your vehicle to a professional mechanic.