I have a Y7 header with the cat on it and tehre is a huge *** crack(causing major detonation) on it so i am going to buy a cheap ebay header for now and now i wont have a cat and no place to put the 2nd O2 sensor.

Will my car be fine with just the first one in?

 

You can buy headers with the second O2 sensor inlet. Anyways, if you deeply need one, I would just grind down the surface of the piping, drill and thread an inlet for my second O2. I would reccomend that if you know how to do some mediocre metal fab...


Dieselboy - Dieselboy Present The Human Resource (2006) - 2 - Parallel Universe.mp3 [195Kbps] (04:04)

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Metalluthier &raquo;</TD></TR><TR><TD CLASS="quote">You can buy headers with the second O2 sensor inlet. Anyways, if you deeply need one, I would just grind down the surface of the piping, drill and thread an inlet for my second O2. I would reccomend that if you know how to do some mediocre metal fab...


Dieselboy - Dieselboy Present The Human Resource (2006) - 2 - Parallel Universe.mp3 [195Kbps] (04:04) </TD></TR></TABLE>

yeah i was talking along something like this

http://cgi.ebay.com/ebaymotors...ZWDVW

would placing the 2nd one in even without a cat mess it up or would it be ok?

 

that header in your link has 2 o2 bungs.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by :Andrew &raquo;</TD></TR><TR><TD CLASS="quote">that header in your link has 2 o2 bungs.</TD></TR></TABLE>

yeah but would it throw off the 2nd O2 sensor for not being after the cat or would it be ok?

 

You'll have a CEL caused by the missing cat.

 

yep i punched out my cat and i have that lovely CEL light. been driving w/ it for probably a year or so

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by pumpkyn &raquo;</TD></TR><TR><TD CLASS="quote">I have a Y7 header with the cat on it and tehre is a huge *** crack(causing major detonation) on it so i am going to buy a cheap ebay header for now and now i wont have a cat and no place to put the 2nd O2 sensor.

Will my car be fine with just the first one in?</TD></TR></TABLE>

See if you can find a used Y8 header and cat if you're not real interested in performance. I'm sure someone in your neighborhood or local community will give the parts to you for ***** and giggles.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by bsixteen &raquo;</TD></TR><TR><TD CLASS="quote">yep i punched out my cat and i have that lovely CEL light. been driving w/ it for probably a year or so</TD></TR></TABLE>

has your car been running fine other than CEL?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Archidictus &raquo;</TD></TR><TR><TD CLASS="quote">

See if you can find a used Y8 header and cat if you're not real interested in performance. I'm sure someone in your neighborhood or local community will give the parts to you for ***** and giggles.</TD></TR></TABLE>

i have one without a cat but it was hacked off about 4 inches before the end of the header. And ive looked around no one has anything

 

?

 

Your car will run fine without the second o2 sensor installed. You will have a cel though and if another problem comes up that would cause a cel, you would know about it.

thepartsbin.com has some slightly cheaper factory style replacement cat/headers.

 

Even if you did put the 2nd O2 sensor in with a test pipe, you're going to get a CEL anyways. Best just to get the CEL, rip the light out, and forget about it, or better yet, relay the damn thing


White Zombie - Soul Crusher (1987) - 7 - Truck on Fire.mp3 [128Kbps] (04:05)

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Metalluthier &raquo;</TD></TR><TR><TD CLASS="quote">Even if you did put the 2nd O2 sensor in with a test pipe, you're going to get a CEL anyways. Best just to get the CEL, rip the light out, and forget about it, or better yet, relay the damn thing


White Zombie - Soul Crusher (1987) - 7 - Truck on Fire.mp3 [128Kbps] (04:05) </TD></TR></TABLE>

I'm already rockin the CEL so the more the codes the merrier. So i guess i wont even mind putting in the 2nd one.

 

the upstream (before the cat) is used for short term and long term fuel trim. The downstream (on or after the cat) is used for catalytic efficiency, and is not going to effect performance or gas mileage. just an annoying light on the cluster

 

&lt;--- rocking one O2 sensor with OBD2.

Should be OBD1 by tomorrow though.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 95DxSi-R2 &raquo;</TD></TR><TR><TD CLASS="quote">the upstream (before the cat) is used for short term and long term fuel trim. The downstream (on or after the cat) is used for catalytic efficiency, and is not going to effect performance or gas mileage. just an annoying light on the cluster</TD></TR></TABLE>

the exact info i needed to reaasure me