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      08-19-2018, 04:08 AM   #28
nick///M3
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Drives: G80 M3C
Join Date: Feb 2008
Location: Greece/Athens

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So far i have changed all the usual suspects on the car.
Maf
Map
Actuators
Vaccum lines

The last item was the vaccum pump. After the vaccum pump was changed it started another problem with the brake pedal beeing stiff at start up.

My problem with the small turbo remains.

Light to middle throttle the car moves sufficiently
Full throttle under 2.5k rpm and the car is choking untill it reaches 2.5k. Then it goes ballistic.

It holds boost and vaccum when working. When you turn of the car the vaccum goes to 0 immidiately.

Boost until 2.5k rpm is arround 0.8-1.2 bar and at 2.5k rpm goes to 2.3-2.4 bar

My mechanic now says it must be the small turbo itself....
Appreciate 0