2021 Lt1 with Lt4 blower swap map sensor incorrect reading??

I am using the map sensor breakout from the maf 3 wire map to the 4wire tmap sensor. I have the Lt4 tmap sensor in the rear port of the Lt4 blower. Set to NA-TIAP, Linear is set to 425kpa, offset is set to -32.50kpa, Max 255kpa/min 10kpa. Key on engine off map is reading 63kpa, baro reading correct at 98kpa which I'm assuming comes from the MAF. When I let it idle it reads 19kpa. Sensor unplugged shows 0.00. Am I missing something setting up this map sensor??

Figured it out. I was logging intake manifold absolute pressure and found out I need to log manifold absolute pressure hi res to get the proper reading.

please explain what was wrong