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.
1997 Mazda MX-5 Miata Base, AutomaticFACTORY OEM SERVICE PROCEDURE
Throttle Position (TP) Sensor Continuity: Inspection
- Turn ignition off. Ensure throttle valve is in closed position. Disconnect TP sensor connector. Using an ohmmeter, check for continuity between terminals "A" and "B" at TP sensor. See Figure . Continuity should exist. If continuity exists, go to next step. If continuity does not exist, adjust TP sensor.
- Insert a .016" (.4 mm) feeler gauge between throttle lever and throttle stop screw. Check for continuity between terminals "A" and "B" of TP sensor connector. See Figure . Continuity should not exist. If continuity exists, adjust TP sensor.
Factory Service Tools
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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.