The car is a 2002 E46 320d 150ps manual. Decat
, EGR delete, no leaks anywhere.
Boost is fine with stock map. With tuned files (tried many already) it spikes pretty bad, followed by a big correction by N75 (flat spot/underboost between 2100 and 2700rpm).
Should this be corrected by tune or is it physical? (i.e. need to adjust actuator or stop screw)
Here is graph: http://s442.photobucket.com/user/martin ... s.png.html
Grey = boost actual, orange = boost requested. Light blue thin line = N75% Other 2 are MAF.
Log file is in attachment. 3rd gear 1500 -> 4000 at full throttle.
You do not have permissions to view the files yet. You have to be registered and you have to make at least 3 quality / unique posts.