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.
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HOMESERVICE MANUALSACURA1994INTEGRA (GS-R) L4-1797CC 1.8L DOHC (VTEC)REPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTCOMPUTERS AND CONTROL SYSTEMSAIR TEMPERATURE SENSOR ( AMBIENT / INTAKE )DESCRIPTION AND OPERATION
1994 Acura Integra (GS-R) L4-1797cc 1.8L DOHC (VTEC)
Air Temperature Sensor ( Ambient / Intake ): Description and Operation
1994 Acura Integra (GS-R) L4-1797cc 1.8L DOHC (VTEC)SECTION Description and Operation
Intake Air Temperature (IAT) Sensor Operation:
PURPOSE
The Intake Air Temperature (IAT) sensor measures air temperature inside the intake manifold.
CONSTRUCTION
The sensor consists of a negative coefficient thermistor bulb. As air temperature increases, sensor resistance decreases.
OPERATION
The Engine Control Module (ECM) receives sensor information as resistance to ground. Air temperature information is used along with information from other inputs to determine air density and adjust fuel delivery accordingly.
RENDER: 1.0x
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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.