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  #1  
Old 01-29-2015, 08:08 PM
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BOV sound

Nice day today in Houston and I was driving with the windows down. Went to accelerate and I can hear the sound of the X bouncing back off the sidewall. Couldn't help but to notice every time it shifted, I hear this BOV sound, like a swooshing sound. What is causing this? Thanks!
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Old 01-29-2015, 08:41 PM
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Do you have a turbo, bro?

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Old 01-29-2015, 09:37 PM
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Nah brahhh... Kicked that habit. Use to have a 300zx twin.
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Old 01-30-2015, 04:53 AM
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Can't help you then😊......I have had a few Skylines, Mazda Speed 3 and even a Nissan Stagea 260RS (which I doubt most know what that is but they are rad).

Bought an X5 as a 'grown up car' and even though my x5 is turbo diesel, I still miss that sound when you snap the throttle shut on boost (diesel doesn't have a throttle body).

But none of that helps you right!

Do you have an aftermarket intake?


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Old 01-30-2015, 07:12 AM
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the engine will retard timing and cut fueling when you upshift for a better smoother shift, sort of sounds like the engine is farting
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Old 01-30-2015, 09:29 AM
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Quote:
Originally Posted by Gurjit View Post
the engine will retard timing and cut fueling when you upshift for a better smoother shift, sort of sounds like the engine is farting
I try telling my wife that, but I am soon betrayed by the need to open a window.
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Old 01-30-2015, 01:58 PM
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Quote:
Originally Posted by Gurjit View Post
the engine will retard timing and cut fueling when you upshift for a better smoother shift, sort of sounds like the engine is farting
There is a distinct difference in my farting sound and BOV sound and that doesn't include the smell.

I also noticed a slight "hesitation" between the shifts hence the BOV sound.
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Old 01-30-2015, 02:00 PM
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I try telling my wife that, but I am soon betrayed by the need to open a window.
Lock the windows and blast the heat. Make a game out of it.
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Old 01-30-2015, 03:44 PM
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Quote:
Originally Posted by chivas View Post
There is a distinct difference in my farting sound and BOV sound and that doesn't include the smell.

I also noticed a slight "hesitation" between the shifts hence the BOV sound.
kk u got problems than bro, lol

do you have inpa or gt1 or anything?
try reseting the learnt values
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Old 01-30-2015, 06:40 PM
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Wonder if your not hearing your torque converter squeal? Mine does between shifts under heavy acceleration...
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