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.
1988 Mazda RX-7 Base, 2D ConvertibleFACTORY OEM SERVICE PROCEDURE
Throttle Sensor
- On turbo models, remove intercooler. On all models, remove sensor connector. Connect ohmmeter to terminals "A" and "B". See Fig 1 . Open throttle valve and note resistance readings.
- On non-turbo models, repeat procedure on terminals "A" and "C". Resistance readings must be within specification. See THROTTLE SENSOR RESISTANCE table. Install sensor connector. On turbo models, reinstall intercooler.
THROTTLE SENSOR RESISTANCE
| Terminal | k/Ohms |
|---|---|
| A & B - Idle Position | 1 |
| A & B - Fully Open | 4-6 |
| A & C (Non-Turbo Only) - Idle Position | 4-6 |
| A & C (Non-Turbo Only) - Fully Open | 4-6 |
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.