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Discussion Starter · #1 ·
As i said earlier somewhere, i fitted a boost gauge to my 1.5 diesel note, and have noticed that the boost fluctuates when I'm cruising at any speed (for example, 30MPH in 3rd, 40 MPH in 4th etc.) anyone have any ideas about this?? should it be looked at, have also noticed that when the boost fluctuates i can here hear the turbo spooling up and down (no stock air filter), any help/advice would be appreciated
 

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it will do as it comes on and off boost tbh you will also find the actuator is controlled by the ecu via a valve to stop it over boosting
 

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Discussion Starter · #3 ·
even whencruising? I would have thought that if my foot is in the same place on the throttle the boost would stay the same/level out??
 

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all depends on the strain on the engine, if it compresses the intake air for to long it would overheat the air
 

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Discussion Starter · #5 ·
O ok :) thanks, I read on some other forums that it can be the vanes
 
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