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

Throttle Position (TP) Sensor Resistance

THROTTLE POSITION (TP) SENSOR RESISTANCE

Test Condition ⁽¹⁾

Ohms

B2300, B3000, B4000, Millenia & Tribute

⁽³⁾

Miata

Between Terminals "A" & "B".

2500-5000

Between Terminals "B" & "C"

200-1100

MPV ⁽²⁾

3200-4800

Protege & Protege5 ⁽²⁾

4000-6000

626 ⁽²⁾

2.0L

4000-6000

2.5L

2500-5000

⁽¹⁾	With throttle closed.

⁽²⁾	Between terminals "A" & "C". See Fig 1.

⁽³⁾	Information not available.

Fig 1: Identifying TP Sensor Connector Terminals (MPV, Protege, Protege5 & 626)

Courtesy of MAZDA MOTORS CORP.

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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.

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