Weird brake problem
My pedal is soft. It travels more than what I would call normal before you can feel the brakes start to grab
When the car is off (no boost) the pedal is rock hard
I have replaced the master cylinder and the system has been flushed and bled twice, so I an very confident that there is no air in the system. ABS works properly. The ABS pump has been tested with a PWIS and is fine
The brake lines are newer and SS. Pads and rotors are newer
When the car is running and you have brake boost the pedal is soft.
Our theory is there is too much boost.
Could that be the case?
Can a booster fail in such a way that it increases boost?
I need to get the wrapped up fast as I am planning on going to the track this week
I guess I could always disconnect the booster and go with manual brakes
Your suggestions are very welcomed
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2004 Boxster S 6 speed - DRL relay hack, Polaris AutoTop DIY
2004 996 Targa Tip
Instructor - San Diego region
2014 Porsche Performance Driving School
2020 BMW X3, 2013 Ram 1500, 2016 Cmax, 2004 F-150 "Big Red"
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JayG 
2004 Porsche Boxster S
2004 Porsche 996 Targa
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