Is there a IAT sensor with 1/4 npt threads?
If so what make and model of vehicle does it come from?
just drill the hole larger and re-tap for 3/8 NPT (most IAT sensors with threads are 3/8 NPT)
or buy a brass adapter from Home Depot to step up to the 3/8 NPt
http://www.summitracing.com/parts/smp-ax1/overview/
http://www.summitracing.com/parts/smp-ax1/overview/
I bought a bung, and cut the length down to get the sensor fully in the airflow.
I used the sensor shown above. It tends to heat soak....
Ron







