Boost Problem please help!!!!!!

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Feb 6, 2017 | 11:54 PM

Bennybugga

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From: Texas

Boost Problem please help!!!!!!

Car whistles really loud like theres a boost leak. Leak tested it and it held pressure, but it wont get past 10 psi car normally throws 23 psi any ideas on what could be the issue

Feb 7, 2017 | 02:53 PM

ECaulk

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Codes?

Feb 7, 2017 | 04:24 PM

Bennybugga

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I have a tps code that comes and goes as it pleases but other than that no codes

Feb 7, 2017 | 05:09 PM

rnjmur

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Possibly a wastegate/BPV issue. Normally should see a code though.

Feb 7, 2017 | 05:17 PM

ECaulk

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Miles, tune, mods. Any extra information that can help

Feb 7, 2017 | 05:55 PM

Bennybugga

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96k fbo and tuned stock turbo also have a hks bov

Feb 7, 2017 | 05:57 PM

ECaulk

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bov after maf? (maf in stock location?)

Did you make sure the bov is sealing correctly? I know those can be a source of leaks.

Feb 7, 2017 | 06:04 PM

Bennybugga

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Yea maf in stock position. I did a boost leak test tested good so i was guessing the bov was sealing fine. When im driving you can just hear what sounds like a big leak

Feb 7, 2017 | 06:28 PM

63 Nova SS

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So it's whistling and you don't have a boost leak yet it can only hold 10psi? Sure you don't have a charge pipe coupler loose or a map sensor? Does it feel like it's only boosting 10psi?

Feb 7, 2017 | 06:32 PM

#10

Bennybugga

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Yea it does.. i just tried to do a pull and half way through i lost all power and my bov went off

Feb 7, 2017 | 09:48 PM

#11

ECaulk

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So is your bov going off at 10psi?

I'd check your vacuum lines to the wastegate housing, iirc wastegate spring is near 10psi

Feb 7, 2017 | 10:14 PM

#12

Bennybugga

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Thanks man i appreciate your feedback! ill check that tomorrow, and let you know how that goes

Feb 10, 2017 | 11:23 AM

#13

SChassisMostly

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From: Roy, UT

Don't you need to move your MAF if you run a BOV to a blow through design? Could that maybe cause an issue? Some intercooler pipes, like ZZP's, relocate the MAF and then tune for the BOV. I'm still new at this.

Feb 11, 2017 | 04:05 PM

#14

Bennybugga

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I checked everything it looks fine. Idk what to check anymore intercooler and piping looks fine. Vacuum lines look fine passed leak test. Any ideas maf maybe but theres no code