Engine-Codes - Nissan - P0101 2009 NISSAN PATHFINDER

P0101 2009 NISSAN PATHFINDER Code - Mass Air Flow Circuit Range/Performance

- Code Popularity: 3,250 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 2/3
Table of contents

|What are the Possible Causes of the P0101 2009 NISSAN PATHFINDER Code?

  • 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 P0101 2009 NISSAN PATHFINDER Code?

Start by checking the "Possible Causes" listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector's pins.

|P0101 2009 NISSAN PATHFINDER 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 P0101 2009 NISSAN PATHFINDER code?

Labor: 1.0

The cost to diagnose the P0101 2009 NISSAN PATHFINDER code is 1.0 hour of labor. The auto repair's diagnosis time and labor rates vary by location, vehicle's make and model, and even your engine type. Most auto repair shops charge between $75 and $150 per hour.

Does your car have Safety Recalls? → Check here

|What are P0101 2009 NISSAN PATHFINDER code possible symptoms?

  • Engine Light ON (or Service Engine Soon Warning Light)
  • Engine stall
  • Engine running rough
  • Excessive fuel consumption
  • Excessive smoke

|What Does the P0101 2009 NISSAN PATHFINDER Code Mean?

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 a high or low voltage from the sensor under normal driving conditions.
Mass Air Flow Circuit Range/Performance

|Need more information with the P0101 2009 NISSAN PATHFINDER code?

Need more information on how to fix the P0101 2009 NISSAN PATHFINDER code?
Get Access to Factory Service Manuals

|Need help with a P0101 2009 NISSAN PATHFINDER code?

Get the p0101 2009 nissan pathfinder code diagnosed by a professional: Find a repair shop in your area