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Boost cuts and sputtering turbo

5.7K views 7 replies 5 participants last post by  trdtoy  
#1 ·
My car has been running rough for the last few months. It doesn’t build boost as fast anymore and once I hit max boost it either cuts or my turbo starts sputtering like the turbines are being push backwards. Would a worn wastage or diverter valve cause something like this to happen?
 
#2 ·
when was the last time plugs and coils were replaced?

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#5 ·
So no codes when you scan the obd2 port? The plugs and coils need to be changed every 50-60k miles max with proper oem coils and proper plug based on plans for the car here on out. Start there but realize the issue is most likely going to be related to the oem fuel line or boost management on the car.