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Discussion Starter · #1 ·
I have a 1999 9-3 convertible base. It is running base boost and i pulled the wastegate hose off of the BPC and went for a test drive. I was able to achieve correct boost levels. I ordered a MBC+A and according to the installation directions it actually bypasses the wastegate part of the BPC so is it safe to keep the malfunctioning BPC in the car with a MBC+A installed.

Thanks,
- ack41988
 

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You might try removing the BPC and spraying some carb cleaner in each port and shake it a little. Let it sit for 5 minutes or so, and dump it out. It fixed my BPC, which is a little different from the newer cars... Ron
 
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