turbo coming in and out..is it a vaccum leak??

[silversubby]

when i hit the turbo in any gear above first, the turbo comes and goes...could it be due to a vaccum leak?? any help knowledge or advice would be great.

[SD_GR]

Do the revs climb but the car fails to accelerate? Do the revs then seem to "catch up" with the car when you ease off the throttle a bit?

[Donkey]

when i hit the turbo in any gear above first, the turbo comes and goes...could it be due to a vaccum leak?? any help knowledge or advice would be great.

Help us help you. The more detailed and explanatory you can be with the problem the more we can help. You need to elaborate,with detail,on your issue.

[silversubby]

ok. im accelerating on a straight level road, i have the gas pedal down i am in between 3,000-5,000 rpm and instead of having constant power and acceleration it comes and goes. i dont know if i can get anymore detailed

[Donkey]

List all the performance mods on the car. Do you have a boost gauge?

[silversubby]

dont have any mods. just yesterday i switched out my air intake back to the stock cause the guy before me put some $20 piece of crap high flow air intake on and i think it was the reason for throwing a p0170 but im still waiting to see if the cel comes on. oh and i dont have a boost gauge. i was planning on getting one but just starting college and dont have alot of money....

[Donkey]

It's possible the intake was causing the problem. If gonna be hard to diagnose if you can't give any datalogs or any real hard data.