In general, you want it as close to the throttle body as possible. Even in the intake itself, if you have a good spot to mount it where it will see real airflow across it. (Mine happens to be in my intake, a few inches behind the throttle body.)

What does IAT mean on scan tool?

Intake Air Temperature
The Intake Air Temperature (IAT) Sensor is used by the engine’s Power Control Module (PCM) to decide at which rate the engine should spark and inject fuel to obtain optimal performance.

What should the air intake temp be?

After turning it on, check for the temperature of the IAT sensor. It should be 10°F above or below the ambient temperature of the vehicle. If this is not the case, you may have a problem with the sensor.

What is a normal IAT temperature?

It should be 10°F above or below the ambient temperature of the vehicle. If this is not the case, you may have a problem with the sensor. Shake the IAT sensor connection to the mass airflow sensor, and check to see if there is any difference in reading.

What is a good temp for IAT?

Going from 254 degrees to 83 degrees is very effective, assuming the ambient air temp is somewhere in the 50-70 degree range.

What should my IAT read?

Typically, the temperature readings should be 10 degrees more or less than the vehicle’s ambient temperature, depending on the outside temperature and the engine’s temperature. If the readings are not realistic, there could be a problem with your IAT sensor or the wirings to it.

What should my IAT be?

Can IAT sensor cause misfire?

No – IAC (Intake Air Temperature) sensor / circuit malfunction has no affect single cylinder misfire. The IAT sensor wire connector often gets disconnected inadvertently when other engine services are being performed and just needs to be re-connected..

What does the IAT sensor do on a car engine?

IAT Sensor If present, the Intake Air Temp (IAT) sensor (aka: MAT – Manifold Air Temp) is used by the ECM to tell it the temperature of the air coming into the engine. The ECM uses this input to aid in the calculation of fuel and spark delivery. The IAT sensor is a simple thermistor which means its resistance changes based on its temperature.

What size are the threads on the GM IAT sensor?

The threads are 3/8″ NPT pipe thread – note that isn’t an actual 3/8″ outer diameter but a pipe thread size based on pipe inner diameter. Use the following 3 point curve calibration data when using GM IAT Sensor with open element and your MS system:

What size wire do I need for IAT sensor?

GM IAT Sensor with open element are proper GM-style sensors for use with ALL MegaSquirt & MS3Pro ECUs and include a 6″ wire pig-tail with weatherproof connector. The threads are 3/8″ NPT pipe thread – note that isn’t an actual 3/8″ outer diameter but a pipe thread size based on pipe inner diameter.

Is there a pigtail connector for the IAT sensor?

Yes. You can order a connector here: GM IAT sensor pigtail connector. This is a somewhat different style connector from the one we ship with the sensor, but will connect to the sensor without any problem. Where exactly should I install this on my engine?