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Blow off valve busted????

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Old Apr 17, 2005 | 05:46 PM
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Default Blow off valve busted????

Hello

I just installed a used ATI kit that came with a HKS blow off valve. I noticed once I start the car and let it idle there is a lot of air being vented from the BOV. When I rev the engine, more air is being vented from the BOV. I have tried to adjust the BOV and it still vents as much air.

Is this normal?

I have only driven it up and down the street, and the car feels very sluggish. Could it be cause there is no air getting into the engine?

I have had the PCM flashed for my setup.

Any advice is appreciated.
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Old Apr 17, 2005 | 06:03 PM
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no it isn't normal the bov should only allow air out when pressure is built up and you let off. try blocking it off and taking it for a ride without it to see if it helps.
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Old Apr 17, 2005 | 06:22 PM
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Is it a blow off valve (BOV) or a bypass valve. If it is in fact a BOV, no air should come out at all until you let off the gas. Did you tap into a good vaccum source?
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Old Apr 18, 2005 | 08:07 AM
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Originally Posted by Ferocity02
Is it a blow off valve (BOV) or a bypass valve. If it is in fact a BOV, no air should come out at all until you let off the gas. Did you tap into a good vaccum source?
It is a HKS blow off valve. I tapped into the brake booster vacuum line. So under idle, no air should be venting from the BOV or when I rev the engine?
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