problems AGAIN ****!!

[AUDIS2avant]

Getting tired now, car wont start before 3. time now from cold, mpg is off boost is falling down, almost no overboost now just a short peak.
Dont want to change ewerything between the numberplats now, so any help would be nice?
Have changed lambda and n75 valve for now, nothing helped

[Jamo]

vag-com the car, if it's aby could be hall sensor

[AUDIS2avant]

Sure?
Cause it´s got NO misfires engine runs perfect besides the above

[Knight Rider S4]

LOL...sure!....Do a output test using vag.com and scan for codes

[Jamo]

search and you'll see.........

[AUDIS2avant]

ok, will try, thanx

[Jamo]

Hall sensor if failing doesn't show up on vag-com btw btdt, but you may have other codes.

[AUDIS2avant]

Ok, but does the hall sensor really make the car go down on boost and mpg if it´s bad?

[Jamo]

Hall sensor is for non starting

[Knight Rider S4]

MAF is the first thing i would look at

[AUDIS2avant]

ok, hall sensor is the cam sensor?

Yes am planing to change maf and either 4pin or 2 pin coolant sensor, which one that controls the coldstart

[AUDIS2avant]

Have tried today cleaning all sensors, and all looks ok, only having start problems when engine is cold tho, not when hot.
Have tried the "watertrick" without luck also.
Am trying to sort out a vag-com session maybe tomoz