My baro air pressure on my Freescan will stay at .094 and change to 1.04 and then down to 0.97. Is this normal? This is over a 2 minute datalog i did.

 

I picked up a new connector from the dealer for $20 so we will see if it makes any difference. I noticed the sensor seal when i pulled the map off so i picked one up for $3 also. The instructions say to use oil before installing. Would have not done that but its probably so it can be removed easily next time.

 

Well i went ahead and bought new AC delco parts. I work for the Chevy dealership so i got these at a good price. The new connector was $20, $3 for the orange washer and $40 for the Map sensor. My map reading would change everytime i made a datalog run. I did a new one with 4 seperate runs and it never changed. I also had the map higher than the baro and it didn't do it anymore. The washer was shot so maybe it was leaking but at least i can move forward and not worry these things were hurting my performace. My car ran a little better but didn't make any hugh differences.