Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSMAZDA20113 MAZDASPEED, 2.3 3REPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 28 (ENGINE CONTROLS - SENSOR OPERATING RANGE CHARTS)INTRODUCTIONMASS AIRFLOW SENSOR
2011 Mazda 3 Mazdaspeed, 2.3 3
Mass Airflow Sensor
2011 Mazda 3 Mazdaspeed, 2.3 3SECTION Mass Airflow Sensor
WARNING: This page does not describe the selected car, but rather 10 other vehicles, including the 2002 Mazda Tribute, 2002 Mazda Protege5, 2002 Mazda Protege, 2002 Mazda Millenia, and 2002 Mazda MX-5 Miata. However, it is still accessible from the selected car via links, so may be relevant.
MASS AIRFLOW (MAF) SENSOR VOLTAGE
| Condition | (1) Volts | ||||||
|---|---|---|---|---|---|---|---|
| B2300, B3000 & B4000 | |||||||
| Ignition On | 0 | ||||||
| Idle | .6-.9 | ||||||
| Miata | |||||||
| Ignition On | 0.9-2.0 | ||||||
| Idle | 1.7-2.4 | ||||||
| Millenia 2.3L & 2.5L | |||||||
| Ignition On | 1.3-1.5 | ||||||
| Idle | 1.5-3.0 | ||||||
| MPV | |||||||
| Ignition On | 0.0-0.1 | ||||||
| Idle | 0.5-0.8 | ||||||
| Protege & Protege5 | |||||||
| Ignition On | 0.6-2.0 | ||||||
| Idle | 0.8-2.2 | ||||||
| Tribute | |||||||
| 2.0L | |||||||
| Ignition On | 0 | ||||||
| Idle | 0.6-0.9 | ||||||
| 3.0L | |||||||
| Ignition On | 0 | ||||||
| Idle | 0.6-0.8 | ||||||
| 626 | |||||||
| 2.0L | |||||||
| Ignition On | (2) .02 | ||||||
| Idle | .6-1.1 | ||||||
| 2.5L | |||||||
| Ignition On | Less Than 1.0 | ||||||
| Idle | 1.0-2.0 | ||||||
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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:
- • 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.