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.

2001 Mazda MPV ESFACTORY OEM SERVICE PROCEDURE

Throttle Position Sensor

TP SENSOR VOLTAGE (ALL MODELS)

ECM/PCM Wire Color ⁽¹⁾

Closed Throttle Volts ⁽²⁾

⁽²⁾ Wide Open Throttle Volts

B2300, B2500, B3000, B4000 & Tribute

Gray/White (89)

.49

4.65

Miata

Green/Black (4V)

.1-1.1

3.0-4.6

Millenia

Yellow/Green (3B)

.1-1.1

2.8-4.5

MPV

Brown/Yellow (89)

4.9

Protege

1.6L

Brown/Yellow (89)

.1-1.1

3.0-4.6

2.0L

Brown/Yellow (89)

.1-1.1

3.0-4.6

626

2.0L

Violet/Yellow (89)

.3-0.7

3.4-5.3

2.5L

Violet/Yellow (89)

.4-0.5

3.5-4.4

⁽¹⁾	Measure voltage between ground and ECM/PCM terminal No. in parentheses.

⁽²⁾	Voltage measurement should change gradually and smoothly as throttle is opened.

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.

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