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.
1995 Mazda RX-7 AutomaticFACTORY OEM SERVICE PROCEDURE
Fuel Temperature Sensor
- Remove circuit opening relay. Start engine and allow system to fuel pressure to bleed down. Install circuit opening relay. Remove upper intake manifold. Remove fuel temperature sensor from fuel rail.
- Place sensor and thermometer in container of water. Connect ohmmeter to sensor terminals. Heat water. Note resistance at specified temperatures. See FUEL TEMPERATURE SENSOR RESISTANCE table. Replace sensor as necessary.
FUEL TEMPERATURE SENSOR RESISTANCE
| Temperature | Ohms |
|---|---|
| 68°F (20°C) | 2200-2700 |
| 176°F (80°C) | 290-350 |
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.
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