MASS AIRFLOW SENSOR VOLTAGE ⁽¹⁾

Application

Volts At Idle ⁽²⁾

⁽²⁾ Volts At 2500 RPM

Altima

1.1-1.5

1.6-2.0

Frontier & Xterra

0.9-1.8

1.9-2.3

Maxima

1.1-1.5

1.7-2.4

Murano

1.1-1.5

1.6-2.4

Pathfinder

1.2-1.8

1.6-2.2

Sentra

1.0-1.7

1.5-2.4

350Z

1.1-1.5

1.7-2.4

⁽¹⁾	Values are approximate and vary with engine RPM. Voltage should be less than one volt with Key On, Engine Off (KOEO).

⁽²⁾	With engine at normal operating temperature, specified speed and no load.

MASS AIR FLOW SENSOR CALCULATED VALUE ⁽¹⁾⁽²⁾

Application

At Idle ⁽³⁾

At 2500 RPM ⁽³⁾

350Z & Murano

5-35%

Altima

10-35%

Frontier & Xterra

9.5-34.0%

13.9-24.9%

Maxima

10-35%

Pathfinder

14-23%

12-25%

Sentra

20.0-35.5%

12.0-27.0%

⁽¹⁾	Values are approximate and vary with engine RPM. Values are displayed as a percentage of total load.

⁽²⁾	As measured using CONSULT-II tester or generic scan tool.

⁽³⁾	With engine at normal operating temperature, specified speed and no load.

MASS AIR FLOW SENSOR MEASURED AIR FLOW

Application

Flow At Idle (Gram/Sec.)⁽¹⁾

Flow At 2500 RPM (Gram/Sec.) ⁽¹⁾

Altima

1.0-4.0

4.0-10.0

Frontier & Xterra

.9-5.8

7.5-13.2

Maxima

2.0-60

7.0-20.0

Murano, Pathfinder & 350Z

2.0-6.0

7.0-20.0

Sentra

1.4-4.0

5.0-10.0

⁽¹⁾	As measured using CONSULT-II tester or generic scan tool.

When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

• You smell fuel, burning insulation, or see smoke.

• Brakes feel soft, pull hard to one side, or make grinding noises.

• The engine overheats, stalls repeatedly, or misfires under load.

• You are missing required tools, torque specs, or safe lifting equipment.

• You are not confident in the next step or safety outcome.

Safety Warning

Mass Airflow Sensor

Use the Manual With the Right Hardware

When to See a Mechanic

Rather have a pro handle this?