1.5T Calling all turbo freaks and Tuners: TURBO FLUTTER UNDER ACCELERATION

[kidcon]

So recently I have been noticing when I am accelerating my turbo stutters - I am not quite sure why.

My first thought was BPV but its only when i am on the gas
then I thought vaccum leak but wouldnt my car not get full boost if i had a leak?
then I thought overboost?

I am not really sure what it could be, if any one has any idea it would be greatly appreciated

I will try to get a video tonight

Mods:
Ktuner v1.2 dual 21psi map
prl stage 1 intake
cat racing hatless downpipe
magnaflow exhuast

Sponsored

 

[Micah]

any modifications on the car?

 

[kidcon]

Ktuner Stage 2
Magna flow exhaust
CNT racing catless Dp
PRL stage 1 intake

I think thats all the performance (I have had no problems the first 3 months on all of this)

 

[Micah]

If you can reproduce the issue - upload a datalog

 

[kidcon]

I'll get a log and video tonight

 

[dc2turbo]

cvt?

check the throttle body coupler
some are loose from the factory

 

[kidcon]

cvt?

check the throttle body coupler
some are loose from the factory

Yes, CVT - ill check the coupler as well! Thanks

 

[kidcon]

So i did a log with V1.2 to my android device and it won't let me transfer it to my lap top or even open in the app, any suggestions?

 

[kidcon]

@KTuner

 

[logonzojls]

Start by doing a thorough look over your engine bay. Look at all your boost pipes, vacuum lines, especially the ones on the plumbing for the intake, MAF, boost control, and turbo. If you have recently been under there doing anything I would go back over what you did and see if something was loose or ajar. Hope that helps, sometimes it’s something really simple and we overlook it before going into more serious items.

 

[kidcon]

i di a quick look before the drive, nothing looks like its lose or disconnected, i should mention also it doesn't flutter every time but it is more and more

 

[logonzojls]

Ok, well a very thorough look is warranted since you are having these issues.

How much boost are you running on that map? When you hear the flutter are you at or near max boost? Logs would be helpful and letting us know what RPM you are hearing stuff.

 

[kidcon]

im running the dual 21psi map - ill try to get another log with my laptop since i ant seem to work the phone out soon

 

[logonzojls]

What’s stock boost on your car? Do you have the stock BOV? If you have a min update the first post w all your mods too that helps diagnose things.

 

[kidcon]

What’s stock boost on your car? Do you have the stock BOV? If you have a min update the first post w all your mods too that helps diagnose things.

stock BOV yes and i believe stock for the 1.5T is 16lbs

Sponsored