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 MANUALSMAZDA1997MILLENIA V6-2.5L DOHCREPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTCOMPUTERS AND CONTROL SYSTEMSTHROTTLE POSITION SENSORSERVICE AND REPAIR
1997 Mazda Millenia V6-2.5L DOHC
Throttle Position Sensor: Service and Repair
1997 Mazda Millenia V6-2.5L DOHCSECTION Service and Repair
REPLACEMENT
1. Disconnect the Throttle Position Sensor connector.
2. Remove the attaching screws.
3. Remove the Throttle Position Sensor.
4. Verify that the throttle valve is at the closed throttle position.

5. Open the throttle valve slightly and catch the tang of the throttle body on the throttle position sensor plastic tabs. Align tang A on the throttle body with tab A on throttle position sensor. Note tangs on the throttle body mate with the tab on the Throttle Position Sensor on the side of the tab without a slot.
6. Position the Throttle Position Sensor on the throttle body so that the mounting holes align.
7. Install and hand tighten the attaching screws.
8. Release the throttle
9. Adjust the Throttle Position Sensor output voltage and closed throttle position switch.
1. Disconnect the Throttle Position Sensor connector.
2. Remove the attaching screws.
3. Remove the Throttle Position Sensor.
4. Verify that the throttle valve is at the closed throttle position.
5. Open the throttle valve slightly and catch the tang of the throttle body on the throttle position sensor plastic tabs. Align tang A on the throttle body with tab A on throttle position sensor. Note tangs on the throttle body mate with the tab on the Throttle Position Sensor on the side of the tab without a slot.
6. Position the Throttle Position Sensor on the throttle body so that the mounting holes align.
7. Install and hand tighten the attaching screws.
8. Release the throttle
9. Adjust the Throttle Position Sensor output voltage and closed throttle position switch.
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.