I am in the process of converting over to COS3 with a 3 bar map sensor. We got the map sensor scaled close, so at atmosphere it is reading around 99 kpa at around 1.5 volts.

Problem is the SAE.MAP pid will not read a value above 105 kpa.

We tried to view the SAE.MAP pid to see if it was reading correctly and it pulled a vacuum down to 17 kpa and hooked in compressed air around 20psi and saw a voltage logged onto GM.MAP pid of 4.5 volts.

It appears the sensor is working properly (And we tried two sensors) Does anyone know how to change the upper limit of the SAE.MAP pid to read above 105kpa?

Any help would be awesome! Thanks in advance.