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.
2002 Mazda B2300 StandardFACTORY OEM SERVICE PROCEDURE
Mass Airflow Sensor
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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Factory Service Tools
Use the Manual With the Right Hardware
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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.