Does anyone recall seeing a post on BPC valves - Saab 9000 Bulletin Board - Saabnet.com
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Does anyone recall seeing a post on BPC valves
Posted by Noel [Email] (more from Noel) on Tue, 6 May 2008 15:33:18
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that had a nicely detailed explanation of how they work? There was one in the past couple months, I think. It explained what is going on inside as the valve reacts to throttle and the input from the ECU.
Mine is acting up again and I'm doing some diagnosis, but I forgot to save that link. Now I can't find it.
Mine had been letting the turbo spool up very fast (fun!) but still stopping at the red. Then Saturday it was hitting the red at part throttle and would intermittently go to overboost and cutout. So figuring it was stuck, I tapped it and now it is OK, but I'm back to normal boost--which is not nearly as much fun. That's OK, but I'm trying to figure it out.
I have a few weeks left on the 1 year warranty from my indy, so I really need to figure out whether it needs replacing or not.
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