boost 'flutter'
#1
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boost 'flutter'
Weird problem with my 9:
at full throttle the boost does a ... 'flutter' for lack of a better term. It'll be steady until about 10psi, then start wavering and by the time its at peak the needle on the gauge is going between 25 and 20 or so. (its the most extreme at peak boost, lower than that it fluctuates between about 2psi then grows as the boost grows).
I've had my guy check it multiple times, boost leak test, checked all lines, even replaced the throttle body, but the problem still persists.
I'm beginning to think it might just be with the gauge itself because I do not FEEL a loss of power or boost in the car, it only seems to appear on the gauge.
Thoughts?
at full throttle the boost does a ... 'flutter' for lack of a better term. It'll be steady until about 10psi, then start wavering and by the time its at peak the needle on the gauge is going between 25 and 20 or so. (its the most extreme at peak boost, lower than that it fluctuates between about 2psi then grows as the boost grows).
I've had my guy check it multiple times, boost leak test, checked all lines, even replaced the throttle body, but the problem still persists.
I'm beginning to think it might just be with the gauge itself because I do not FEEL a loss of power or boost in the car, it only seems to appear on the gauge.
Thoughts?
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changed out the BOV completely with another one that we knew for sure worked, so it's not that.
The gauge is the next thing to swap out, just need to buy a new one first
The gauge is the next thing to swap out, just need to buy a new one first
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those are a lot of words put together that i know nothing about
but I'll definitely look into it, i really appreciate the feed back!
My car will be at the shop today so i'll ask about it.
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#12
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I don't know what a wastegate flutter would have done, but like I said in the original post, I didnt feel any loss in power or that it was lagging in anyway :/
but its all good now so I don't have anything to worry about...yet haha
but its all good now so I don't have anything to worry about...yet haha
#14
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im assuming your boost controller is a three port in which the stock ecu controls. If you are tuned that shouldnt be an issue. You can rule out the bov since you said you changed to one that works. My guess, and its only a guess, is since you are not feeling any power loss, but your gauge is being retarded, change the boost gauge then. What kind of gauge are you using right now? Also to, can you hear any fluttering when you are on boost. IE the turbo making weird noises when you are wot. There could be many factors to causing this issue. What sucks is you are going to have to use the elimination process. But def change out your gauge and see if that works.
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i appreciate all the feed back guys. If the problem did persist, I would have changed out the gauge cause it's a cheap-o Autometer boost gauge. But as I said in post 8, I got a re-tune with the addition of some new parts and now it doesn't flutter at all anymore. So i guess it must have been the boost controller.