Just another low boost issue...
#16
Rennlist Member
I second what Mach5 said and will ad to check for a collapsed cat pipe etc. They have been known to do this and cause a very similar issue to what you are describing. I am helping a friend with almost identical issues, however his car is now chipped.
#17
Racer
Thread Starter
Have you tried driving it without any boost control, MBC or cycling valve? You need to be VERY careful not to excessively overboost (although I think you still have a stock ECU which will shut it down). This would tell you if the system is capable of producing more than 6 psi boost. If so, then it has something to do with your controller. If you still only get 6 psi, you may want to look for exhaust leaks pre turbo/wastegate.
Roger
Roger
Any way to check the crossover pipe without removing it?