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Old 07-21-2009, 03:39 PM   #1
mrphoto
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Default new air intake causes bog and hiccup

I just installed a new air filter and piping for my 2007 ion sedan 2.4L with performance package. I made a new mount for the air flow sensor and connected the hose that runs to the valve cover. The car idles fine And I can rev the engine while not in gear. but if I give it too much gas while driving, it will bog and hiccup. what is going on and how do I fix it? could I have damaged the air sensor?
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Old 07-21-2009, 04:40 PM   #2
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Default Re: new air intake causes bog and hiccup

What new intake did you install, homemade, spectra, Fujita?

No runs
No drips
No Cell
No bogs

This is how and where the MAF is placed on the Fujita.
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Last edited by SaturnSdn; 07-21-2009 at 04:52 PM.
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Old 07-21-2009, 04:48 PM   #3
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Default Re: new air intake causes bog and hiccup

Quote:
Originally Posted by SaturnSdn View Post
This is how and where the MAF is placed on the Fujita.

No runs
No drips
No Cell
No bogs

No picture.
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Old 07-21-2009, 04:51 PM   #4
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Default Re: new air intake causes bog and hiccup

Had to redo ............ now you have a picture.
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Old 07-21-2009, 06:09 PM   #5
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Default Re: new air intake causes bog and hiccup

Sorry I don't have a pic to show but it is a homemade pipe from white pvc and the filter is a K&N copy. The MAF is almost in the same spot as the original pipe and I do have it facing in the same direction as the original. If you look at a pic of a 2.4L engine, you will see the rad hose coming up on the left side of the front of the engine. I put the MAF just in front of there and the filter is about 4 inches before that.
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Old 07-21-2009, 07:04 PM   #6
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Default Re: new air intake causes bog and hiccup

The pictures shown is a 2.4L and you'll notice the diameter at the maf is smaller...........is yours?
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Old 07-21-2009, 07:38 PM   #7
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Default Re: new air intake causes bog and hiccup

No it isn't. It is a 3 inch diameter. Do I have to insert a sleeve that will drop it to 2.5 inches (or whatever the factory diameter is)?
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Old 07-21-2009, 09:38 PM   #8
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Default Re: new air intake causes bog and hiccup

1st red flag, you made your own intake and maf tube. the seal around the maf needs to be perfect, not even aftermarket manufacturers always get this right. second, the size of the tube needs to be the stock maf tube's diameter with very gentle transitions to avoid making turbulence at the maf.
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Old 07-21-2009, 10:04 PM   #9
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Default Re: new air intake causes bog and hiccup

thank you very much for your info. I will make the necessary modifications and see how that goes. And the MAF has a rubber seal to make sure there is no leaks. I added a block of plastic to the pipe to match the exact measurements of the stock intake.
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Old 07-22-2009, 02:55 PM   #10
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Default Re: new air intake causes bog and hiccup

I added a sleeve to shrink the diameter to 2.5 inches and it did the trick. My check engine light is still on but hopefully it will go away after driving it for a bit. thanks again for all your help!
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Old 07-22-2009, 03:02 PM   #11
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Default Re: new air intake causes bog and hiccup

Quote:
Originally Posted by mrphoto View Post
I added a sleeve to shrink the diameter to 2.5 inches and it did the trick. My check engine light is still on but hopefully it will go away after driving it for a bit. thanks again for all your help!
you need the air flow sensor there or will remain omn
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Old 07-22-2009, 06:13 PM   #12
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Default Re: new air intake causes bog and hiccup

they have one the car needs to go through a certain number of cycles until the code clears unless you clear it with a code reader. but the CEL may end up being permanent.
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