All Things Mk5 > Superchips Zone

edition 30 not boosting until 4500 revs

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stealthwolf:
What's N75? :chicken:

Hedge:

--- Quote from: stealthwolf on December 10, 2009, 08:44:34 pm ---What's N75? :chicken:

--- End quote ---

The Wastegate Bypass Regulator Valve. :smiley:

john_o:
Both the boost and intake pressures are
used to control the wastegate of the
turbocharger. These pressure signals are
supplied to the ECM, which then sends
a pulse-width modulated signal to the
Wastegate Bypass Regulator Valve N75. As
a result N75 controls vacuum supply to the
Pressure Unit, which directly acts on the
wastegate via a connecting rod. This control
system regulates the turbine speed and
sets the maximum boost pressure.


The logged values should give an indication of things like boost leaks. As it should have a defined 'profile'

subaru26675:
i did think it may be wastegate related, will have it all checked out soon. :happy2:

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