My turbo system was working perfectly until driving to work this morning. I noticed it was sluggish, and, though it would build boost, took forever.

I tested it and I get a steady 13psi with no dip at all for transition , but the lag is horrendous (NS guys I feel for ya!). full boost at ~ 4200rpms. Boost holds fine at the top end and it seems like they are both working - just the lag

Searching, I figured it might be the CCV - but most of the people I see with this problem have great primary and no secondary boost.

Any hints? I havent had a chance to look at anything yet, at work and had to let it cool down, but Im going to do the once over to make sure I didnt pop a vacuum line

 

TCA stuck open?

 

Check the TCA Solenoids (there are two of them) and associated vacuum lines

-Rob

 

thanks Ill go check on them inna few mins