Mass Air Flow (MAF) Sensor

1995 Mazda B2300 Base, 2D Pickup, RWD, AutomaticSECTION Mass Air Flow (MAF) Sensor
NOTE: Faults in MAF sensor or circuit should set a service code. See appropriate TESTS W/CODES article.

Visually check MAF sensor for damage. Connect New Generation Star scan tester to data link connector. Select PID/DATA monitor. Select MAF sensor. Replace sensor if voltage readings are not as specified. See MAF SENSOR VOLTAGESΒ  table.

MAF SENSOR VOLTAGES

Condition Voltage
Ignition ON 0
Hot Idle .9
Driving 30 MPH (48KM/H) .8-1.6
Driving 55 MPH (88KM/H) 1.8-2.5
RENDER: 1.0x

NO RELATED

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When to See a Mechanic

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

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.