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Subject Lack/Prevention of boost under load.
     
Posted by BannonZ on March 12, 2021 at 2:51 PM
  This message has been viewed 197 times.
     
     
Message Hey guys,

My '90 TT is on the road again for the season. Car started up fine, drove ok. I took it nice and easy for a couple days, now I'm running into a loss of power issue under load. It seems like the car doesn't want to boost past 7-8lbs. Just feels like something is stopping the car from going past that level.

I did a full smoke test this afternoon. Everything is nice and tight. I did take the plenum off this past winter and replaced some gaskets and cleaned up the engine bay. According to Consult everything is in the green at idle. I have yet to record anything while driving under load. Where can I start? I checked the MAF's, the selin is good, TPS reads properly, timing ok, Injectors were tested by Bernie last year, no codes, profec B 2 seems to be operating fine, settings haven't changed.

Can you guys point me in the right direction?

Quinn

     
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