W 350 Pickup V8-5.9L VIN Z (1990)
Intake Air Temperature (IAT) Sensor: Description and Operation
Throttle Body Temperature Sensor
This sensor monitors the temperature of the throttle body, which is the same as fuel temperature, and communicates voltages to the Single Board Engine
Controller (SBEC) that are relative to degrees of temperature. The SBEC uses this information to adjust the air/fuel mixture for hot restart conditions.