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.
1993 Toyota Tercel BaseFACTORY OEM SERVICE PROCEDURE
Air Temperature Sensor
- Ensure ignition is off. Disconnect electrical connector from air temperature sensor. Air temperature sensor is located in air intake, near air filter.
- Remove air temperature sensor. Place threaded end of air temperature sensor and thermometer in container of water. Attach ohmmeter between air temperature sensor electrical terminals.
- Heat water and note that resistance is within specification in relation to temperature. See Fig 1. Replace air temperature sensor if defective.
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.