Hi. Im trying to adjust my arduino gauge
I cant get IAT data.
Trans temp and coolant works
I believe it is A274 datastream
All I get is negative 40 always.

Word 25
MATDEGND NON-DEFAULTED MAT VARIABLE
DEG C= .75N - 40
DEG F= 1.35N - 40

I don't know why but I cant get this data from the protocol