Those figures are scaled badly so looks worse.
1030-1040mbar is nothing .01v differwnces as it warms up a touch.
Find your altitude above sea level, check on weather station actual pressure(given at sea level) and calculate for your altitude.
Log atmospheric and boost pressure together to compare let idle, then ign off and quickly ign on for a few secs then crank and idle again.
If quick enough should keep data in 1 log, compare atmos and boost.
Blip throttle to rescale log and atmos will look like flat line.
For map location, look to left of egr valve on the inlet manifold, disconnect plug, remove bolt(allen or torx) pull and rotate sensor gently, has a plastic basket at end and probably carbon gunked up.only seal is an o ring.
Spray with carb cleaner or elec contact spray. Log again.