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Gosh-Dang Bosch BOV

Old 10-14-2006, 09:11 PM
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Default Gosh-Dang Bosch BOV

After installing a Bosch BOV, I can no longer reach full (6psi) boost. Now, I'm only getting about 3PSI Max, in every gear, at any RPM.

At first I thought it was installed backwards, so I flipped it around, but that did not change anything.

Does anyone know what the problem may be? Do I have to readjust My MBC after the BOV install? Or myabe my New BOV is fried... Im stumped.

My currect setup is the greddy kit Plus....
-Jim B's Pipes w./ Starion 17 row
-Stock exhaust (except muffler)
-MSD Sebring Ignition thingy
-Vortec FPR
-MBC from Jim
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Old 10-14-2006, 09:15 PM
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well one way to check is to block the passage out of the bov.

make sure you didn't pull vacuum line when installing it and have a leak now.
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Old 10-15-2006, 01:34 AM
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Originally Posted by gangsta View Post
Do I have to readjust My MBC after the BOV install?
No, it shouldn't affect boost in the least. It's either installed incorrectly or not broken.
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Old 10-15-2006, 02:01 AM
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Originally Posted by braineack View Post
well one way to check is to block the passage out of the bov.

make sure you didn't pull vacuum line when installing it and have a leak now.
I have a leaky Forge BOV (keep stalling on exchanging, my fault!), and I have a gimp idle. When I had a busted vacuum line the car would just stall.
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Old 10-15-2006, 12:47 PM
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Originally Posted by firedog25 View Post
I have a leaky Forge BOV (keep stalling on exchanging, my fault!), and I have a gimp idle. When I had a busted vacuum line the car would just stall.

My vacuum line to my BOV had the alternator belt eat through it a tiny bit. I lost boost pressures. Idle was still perfect. Only thing that gave it away was the BOV stared fluttering.
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Old 10-15-2006, 04:20 PM
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It turns out the source of problem was a loose I/C clamp. The hose was just bearly hanging onto the pipe when I discovered it. I didn't even think a loose hose could be my problem, since my vacuum was at a Solid -20PSI, but I guess that makes sense that it would leak under boost, and not vacuum.

The BOV was installed backwards on the 1st attempt however.
Noobs, lol..

Thanks for your help guys!
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