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 MANUALSMAZDA1995B2300 BASE, 2D PICKUP EXTRA CABREPAIR AND DIAGNOSIS (SINGLE PAGE)ENGINE PERFORMANCESENSOR RANGE CHARTSENGINE CONTROLS - SENSOR OPERATING RANGE CHARTSINTRODUCTION
1995 Mazda B2300 Base, 2D Pickup Extra Cab
Engine Controls - Sensor Operating Range Charts: Introduction
1995 Mazda B2300 Base, 2D Pickup Extra CabSECTION Introduction
Sensor operating range information can help determine if a sensor is out of calibration. An out-of-calibration sensor may not set a trouble code, but it may cause driveability problems.
NOTE:
Unless stated otherwise in test procedure, perform all voltage tests using a Digital Volt-Ohmmeter (DVOM) with a minimum 10-megohm input impedance.
AIRFLOW SENSOR VOLTAGES
| Terminal (1) | Ignition On Volts | Engine Running Volts | ||
|---|---|---|---|---|
| "A" (Power Supply) | 12.0 | 12.0 | ||
| "B" (Airflow Signal | 0.5-1.0 | 1.0-2.0 | ||
| "D" (Ground) | 0 | 0 | ||
| "E" (Ground) | 0 | 0 | ||
|
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ENGINE COOLANT TEMPERATURE (ECT) SENSOR RESISTANCE
| Temperature | Ohms |
|---|---|
| 50°F (10°C) | 58,750 |
| 68°F (20°C) | 37,300 |
| 176°F (80°C) | 384 |
| 194°F (90°C) | 280 |
EGR POSITION SENSOR RESISTANCE
| Terminals (1) | Ohms With No Vacuum Applied | Ohms @ 5.9 in. Hg | ||
|---|---|---|---|---|
| "A" & "B" | 2700 | 2700 | ||
| "A" & "C" | 500 | 2700 | ||
| "B" & "C" | 2400 | 100 | ||
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INTAKE AIR TEMPERATURE (IAT) SENSOR RESISTANCE
| Temperature | Ohms |
|---|---|
| 50°F (10°C) | 58,750 |
| 68°F (20°C) | 37,300 |
| 176°F (80°C) | 384 |
| 194°F (90°C) | 280 |
OXYGEN SENSOR
| Operating Condition | Volts |
|---|---|
| Rapidly Accelerating | 0.5-1.0 |
| Deceleration | 0.0-0.4 |
THROTTLE POSITION SENSOR VOLTAGE
| Application | (1) Volts | ||
|---|---|---|---|
| Closed Throttle | .60 | ||
| Wide Open Throttle | 4.50 | ||
|
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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.