My car is starting to have issues now. When I start to drive the car a little hard, it has issues with boost. After I shift into the next gear and then accelerate, the car will not boost. The car will still accelerate, but will not boost. I get off the gas and I hear this strange "Whir" coming from the engine. I get right back on the gas and the car will boost. This doesn't happen when I shift at redline, though.



I've been told that it may be one of the pressure tanks is clogged. Could this be the problem? Otherwise, what is the culprit? Lastly, would going non-seq solve this or make it worse?



One more thing, my car doesn't boos tthe first turbo in 1st gear. What is the problem?



Thanx in advance.

Sounds like those small check valves are going bad.. I have the same problem occasionally, where it won't boost unless I release and reapply the throttle, and I know my check valves are on their way out.

Any particular ones? Or should I just go ahead and replace all of them?

Yes please elaborate on this, I have a FD I am working on now and has basically the same symptoms

Ditto on the more information. I have exactly the same probelm on my 93. I just had the turbos rebuilt and now really have to work to get them to boost.

my car is doing the same thing, will someone please help us out here!! https://www.nopistons.com/forums/pub...IR#>/smile.png