now then guys an a newy here, after years of just reading for support av finally had enough and joined up!!
i relate my car to be doing the same as yours it driving me nuts!
on the data logging the actual boost at its peak is over 1000 less than the specifyed and i think this is why the management cuts the throttle back, i only hit 27.5psi for a second it never holds!
it's a new maf, new actuator, new pcv valve, new bov, turbo don't even whistle! Onl
y done 30k most lady driving lol, I have checked all pipework and pressured it no leaks, ha
s no n249 or n112, had full service!, no fault codes just noticed on logs the actual boost is well off at most 1000 to specified boost! Lol driving me nuts! ANY help will be great