Originally Posted by firebirdparts
It would make some sense to suspect that the boost controller is unable to really control, but that for some reason this doesn't set a check engine light. So for instance, let's say the solenoid is stuck. that's just an example of something that might make sense.
That is the sort of thing that you could figure out by doing a few experiments. vacuum is easy to measure, so you can set yourself up to monitor what is going on in those lines when you're driving.
Thanks for the reply, so basically setting up a vaccume gauge and watching it as I drive? I'm really new to working with turbocharged cars so my question is how would I do it and what would I be looking for. I've read on other fourms about doing this, only they all seemed to be a different scenario than mine. My boost gauge in the car reads just fine I think, cause with the waste gate hose off I build boost just fine. When I release my foot from the gas it opens the waste gate and releases so doesn't that pretty much tell me that the turbo and most everything is fine?? My thought was that it's something else possibly in another system that's telling the ecu to limit it's functions.. Also tried cleaning original bcs (not sure if that would've done anything or not) and replacing it with one I know works from my previous 850 turbo