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 64 (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 9 other vehicles, including the 2003 Mazda Tribute, 2003 Mazda Protege5, 2003 Mazda Protege, 2003 Mazda MX-5 Miata, and 2003 Mazda MPV. However, it is still accessible from the selected car via links, so may be relevant.
MASS AIRFLOW (MAF) SENSOR VOLTAGE
| Condition | Volts | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| B2300 (1) | |||||||||
| Ignition On | 0 | ||||||||
| Idle | .6-1.1 | ||||||||
| B3000 (1) | |||||||||
| Ignition On | 0 | ||||||||
| Idle | .8-1.1 | ||||||||
| B4000 (M/T) (1) | |||||||||
| Ignition On | 0 | ||||||||
| Idle | .6-.9 | ||||||||
| B4000 (A/T) (1) | |||||||||
| Ignition On | 0 | ||||||||
| Idle | .8-1.1 | ||||||||
| Mazda6, Miata, & Protege | (2) | ||||||||
| MPV (3) | |||||||||
| Ignition On | 0.0-0.1 | ||||||||
| Idle | 0.5-0.8 | ||||||||
| Tribute (1) | |||||||||
| 2.0L | |||||||||
| Ignition On | 0 | ||||||||
| Idle | 0.6-0.9 | ||||||||
| 3.0L | |||||||||
| Ignition On | 0 | ||||||||
| Idle | 0.6-0.8 | ||||||||
|
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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.