Replacement BPV

Gnvanny

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Hi everyone,
I’m having some high negative ltft. I’m thinking my Bpv is having some issues because at idle my manifold pressure reads vacuum and turbo pressure reads ambient.
https://www.madhornets.com/automobile-car-truck-parts-accessories/?page=2
Found this Bpv because OEM doesn’t sell just the Bpv. Does anyone have any experience with mad hornet or have a reputable place to get a Bpv?
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Gnvanny

Gnvanny

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Yes, I’ve searched the forum for this topic but could only find people shitting on blowoff valves.
 

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I've never heard of a stock BPV going bad or causing high negative fuel trims. Why are you so sure the issue is the BPV?
 
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Gnvanny

Gnvanny

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Manifold vacuum (-8 to -10 PSI) at idle with the TC Command being 0 is completely normal and expected behavior.

How deep into the negative is your LTFT?

An extreme cut in fuel trim would hint at a leaky injector.
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