There are Aerodynamic protocols of the trucks in OBD2?It's usefoul to estimate the fuel saving by a Aerodynamic device or LRR tire: :http://www.stemco.com/aero-u/.
OBD2 protocol's good but how to localize obd wire in the car? whithout cutting .
muhindo you don't need to localize wire. Usually, all vehicles have OBD2 plug
There are many OBD2 trackers that consume power and diagnostic data right from OBD2 plug. Some of them are integrated in flespi.
thanks my friend