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> Kfx Header Diy, Mods needed to make work
Komptek
post Sep 8 2008, 06:23 AM
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OK for all those looking at buying the KFX Headers and to KFX. These are the modifications required to make the headers work and not cause any Check Engine Lights.

1. Connection for the end of the KFX pipe to CAT needs to have the holes grinded more narrow, about 2-3mm each side.

2. You will need to purchase a set of bolts for the connection of the KFX pipes.

3. OK here's the biggest one. You will need to weld in the second O2 sensor adapter, but not just one but two of these. You will need to weld a second adapter on top of the first adapter. Since the header removes one of the CATs you need to fool the second sensor into believing it is still there. So by pulling the O2 sensor out of the direct path, you give it a false reading that would be the same if the CAT was still there.


Hope this helps everyone else and also helps KFX fix the small issues with the header.
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Glock23
post Sep 8 2008, 06:34 AM
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any chance of pictures to go with this?

Does it matter where the second O2 sensor adapter goes? Do they need to be in a certain spot?

This post has been edited by Glock23: Sep 8 2008, 06:36 AM
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nobodieshero07
post Sep 8 2008, 09:38 PM
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QUOTE(Komptek @ Sep 8 2008, 05:23 AM)
OK for all those looking at buying the KFX Headers and to KFX. These are the modifications required to make the headers work and not cause any Check Engine Lights.

1. Connection for the end of the KFX pipe to CAT needs to have the holes grinded more narrow, about 2-3mm each side.

2. You will need to purchase a set of bolts for the connection of the KFX pipes.

3. OK here's the biggest one.  You will need to weld in the second O2 sensor adapter, but not just one but two of these.  You will need to weld a second adapter on top of the first adapter. Since the header removes one of the CATs you need to fool the second sensor into believing it is still there.  So by pulling the O2 sensor out of the direct path, you give it a false reading that would be the same if the CAT was still there.
Hope this helps everyone else and also helps KFX fix the small issues with the header.
[right][snapback]188762[/snapback][/right]




yeah like common where is the photos. how the heck do you fool the sensor by pulling it out of the path of the exhaust, dont it still get the same amount... and why the he!! did kfx not do this to begin with? then they could have tested it and made sure it was the optimal placment

This post has been edited by nobodieshero07: Sep 8 2008, 09:40 PM
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LePapirrikY
post Sep 8 2008, 09:53 PM
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Komptek
post Sep 8 2008, 10:38 PM
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second O2 sensor goes in the same place as the original, that way there is no changes to the wiring. No picture because if your changing your header you should have a little mechanical knowledge and figure this out on your own when you get under niether your car to take off the old header.
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accentman07
post Sep 8 2008, 10:40 PM
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kinda off topic a lil but what the **** is up with kfxperformance.ca website... and they are not responding 2 me regarding my coilovers...
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Glock23
post Sep 9 2008, 02:52 AM
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well I think anyone can work on these cars. IF pictures were provided it would help people start to work. Some people like to dive in.
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LePapirrikY
post Sep 9 2008, 09:26 AM
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QUOTE(Komptek @ Sep 8 2008, 09:38 PM)
No picture because if your changing your header you should have a little mechanical knowledge and figure this out on your own when you get under niether your car to take off the old header.
[right][snapback]188970[/snapback][/right]

i must disagree with you, if you create a new thread is not only for people who have done this mod, but also for people who wants to do this mod since this problem havent been fix from KFX.
we all know that every DIY needs pics.
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Komptek
post Sep 9 2008, 07:57 PM
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ok ok I'll get some pictures, just give me a day or two, not great weather out that this week.
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TOOSLO
post Sep 10 2008, 03:28 PM
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QUOTE(LePapirrikY @ Sep 8 2008, 10:53 PM)
(IMG:http://www.elantraxd.com/forums/images/smilies/worthless.gif)
[right][snapback]188965[/snapback][/right]

secont that!! :whistling:
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Glock23
post Sep 16 2008, 08:30 PM
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Any updates?
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Komptek
post Sep 16 2008, 08:48 PM
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Yah just working on final revisions
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PastorK
post Sep 16 2008, 09:35 PM
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QUOTE
Sep 9 2008, 06:57 PM
ok ok I'll get some pictures, just give me a day or two, not great weather out that this week.


QUOTE
Posted Today, Sep 16 2008 07:48 PM
Yah just working on final revisions


16 - 9 = 7 Hurry up already :bwekk: :banana: :57:
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Komptek
post Sep 17 2008, 01:32 AM
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LOL I do run 4 businesses out of my home, Plus I am a father of 2. Between work, my kids, my wife. and my health. not much time for other stuff, nto tomention the weather up here sucks. Plus I'm pretty much a night owl right now. But I promise all DIY from me will be up soon. I'm just waiting for a goodtime to do the work. I need to take soem of the parts off to show what I'm talking about.
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Glock23
post Sep 17 2008, 01:33 AM
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ah I wish i'd seen this about two minutes ago haha thanks man
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Komptek
post Sep 17 2008, 01:37 AM
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LOL np got yoru message and aswered it.
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PastorK
post Sep 17 2008, 04:29 PM
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I understand Komp. I was just messin' with ya.
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bhurlin
post Sep 23 2008, 11:19 AM
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We intentially left our the second O2 bung as it is useless. We install our resonator after the second cat that has a built in o2 bung, that way, you get a before and after cat reading on your O2 sensors, just as the factory wanted it to happen.

I will enclose some pictures of my car tomorrow so that you can see what I mean.

My car is a sephia, but the idea is the same and it works!!

Bill
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Komptek
post Sep 24 2008, 02:44 AM
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