Thread: Vishnu Updates
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      05-31-2009, 08:27 PM   #123
FotiosF90M5
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Quote:
Originally Posted by Ilma View Post
I know...it's hard to figure out.

If the leak is small enough, it might induce on initial low boost pressures, but seal itself up when higher pressures charge the system.

With inital boost pressure being lower than target, the DME will overcompensate for low boost by increasing the wastegate duty cycle.

Of course by this time, the leak seals itself off and you are now into an overboost condition.....which may be setting off your limp mode if it's high enough.

I was getting that boost undertarget to overtarget cycling on my datalogs
makes sense..Im going to ask my SA to have them check for boost leaks. Thanks for the advice guys.
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