Integra L4-1678cc 1.7L DOHC (VTEC) FI (1992)
Intake Air Temperature Sensor: Description and Operation
Intake Air Temperature (IAT) Sensor Operation
The air temperature (TA) sensor is mounted on the intake manifold runner. The sensor consists of a thermistor bulb. As air temperature increases,
sensor resistance decreases. The ECU receives sensor information as resistance to ground on pin C5. Air temperature information is used along with
information from the PA sensor to determine air density and adjust fuel delivery accordingly.