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.
Intake Air Sensor
The intake air sensor (temperature sensor I) provides the electronic control unit with voltage signals. The intensity of these signals, depends upon intake air volume and air temperature. The incoming air moves the stator flap against the force of the return spring. As more air is drawn in, stator flap opens even more. See Fig 1.
This rotary motion of the stator flap actuates a potentiometer and thus varies the signal sent to the electronic control unit. Connected to the stator flap is a dampening flap which prevents rapid oscillations of the stator flap. One of the contacts on the potentiometer operates the fuel pump as the stator flap is opened by air flow.
Use the Manual With the Right Hardware
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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.