Can someone tell me why my log shows boost dropping

[97-gst]

It shows like 24 psi on the datalog but my gauge only shows im getting 18 and my gauge doesnt drop, ive checked that out. Is this a boost leak?

 

[95burgundyesi]

Have you adjusted boost estimate correctly?

Here come the airplane open wide ( holds spoon and makes airplane noises)

Calibrated BoostEst Curve

 

[97-gst]

that doesnt show how to calibrate it correctly though

 

[yukiz]

i would do boost leak first before i do anything....

 

[97-gst]

it wasnt a boost leak