In the picture is the fault I have.
Basically the car cuts boost hard at about 1 bar then the boost comes back and then it cuts again and so on. The car accelerates smooth up to about the 1 bar point then the cutting boost starts.
Twice during the test drive the boost was normal 1.8/1.9 bar then the boost issue appeared.
I disconnected the MAF and put my pressure plug in, closed off the rocker breather pipe to do a boost leak test. The car has no leaks from what I can see.
I am thinking this could indicates a sticking N75.
Any pointers will help.
Basically the car cuts boost hard at about 1 bar then the boost comes back and then it cuts again and so on. The car accelerates smooth up to about the 1 bar point then the cutting boost starts.
Twice during the test drive the boost was normal 1.8/1.9 bar then the boost issue appeared.
I disconnected the MAF and put my pressure plug in, closed off the rocker breather pipe to do a boost leak test. The car has no leaks from what I can see.
I am thinking this could indicates a sticking N75.
Any pointers will help.
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