this worked great on my 5.5 gen after my header and ypipe install..no codes

1. buy 2 packages (2 spacers in each package) of anti spark plug foulers...number 42002

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2. drill out one spacer from each package with a 1/2inch drill bit for the 02 sensor to fit when screwed in

3. weld new 02 bungs into as close of stock locations of the stock ypipe and front header...this is were i welded them into my hotshot header and ypipe

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^^ picture above is were i welded my 02 bung in the ypipe...as you can see i have one of the spacer alredy screwed into the bung(i was painting it)

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^^pictured above is my hotshot front header...circled red is the new bung i located for the sensor the use to hit the ac comporessor(hotshots bad design)..circled blue is the old bung plugged...circled green is the new 02 bung for the secondary sensor...

4. this is very important...DO NOT JUST WELDED THE BUNGS ANYWHERE YOU FEEL LIKE IT...you have to get it around the stock location and also check and see if you wuld have any clearance issues...with these spacer you adding about 2inches to the 02sensor...on my ypipe i have it perfectly aligned with the mounting bracket...their was plenty of room for the senor and spacers to fit...on the header its welded almost exactly on the side of the header(talking about when the header is bolted up)..you do not just want to jamb the sensor and spacers anywhere to have issues...to make it very easy to see if you have issues...unplugg the sensors...screw on both spacers and hold it to see were you can weld a bung to

5. what do the spacer do?...the spacers space out the 02 sensor from the exhaust flow..thus thinkin their is still a cat inplace(less exhasut flow)..thus trickin the computer

6..this whole thing is for people who do not want to splice or cut wires to set up a sim...and do not have to make any wires longer(if done correctly)...gettin bungs close to stock locations is so impostant so no wire extension wuld be needed and you can have you 02 plugs on the metal clips instead f hanging around for you **** guys like me lol

any questions ask or p.m me...this might sound comlicated but is very very simple

here a quick pik of it all installed...crappy but hope u get the point

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^^this is the front header...crappy pik...this is takin from under the car...
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^^ this is it installed on the ypipe...see how its lined up with the mounting bracket on the ypipe...you can also see the 2 spacers with the sensor all together...

 

This should be stickied in the 5th gen forum...I think I'm going to try this if I get headers.

 

sticky? Haven't others done this and still got CEL?

 

Honestly, Idk. But I'm willing to risk it when I invest in some headers for the sake of the .org. We'll see if his idea holds up or not.

If there are some threads about this floating around, I haven't seen them.

 

^^ it works if done correctly

 

why do headers trigger CEL?

 

That's still not going to stop a CEL permanently. The reason the CEL comes on is because the rear O2 is seeing the same exhaust gas mixture as the front O2. metal spacers don't change chemistry- cats do.

Why don't you just buy an O2 sim like everyone else and move on with life?

 

^^ cuz people lik u dont kno how to try anything...its bin used on sentras for years with no cel ever coming on and no pending codes....had it on my max for a year and nothing ...no codes at all...never sed any1 had to use this...just an idea if people dont wanna cut wires and stuff like i dont...

bump updated

 

thats wut the spacers do...takes the secondary 02 away from that exhaust stream tricking the computer as if theirs a cat still in place...dont knock it till u try it

 

You clearly dont know who you were talking to.

 

I'm still willing to give this a shot if/when I pick up headers. I'm not too keen on paying $350+shipping for the OBX...

If the CEL comes on, I'll just run a sim. No big deal. Welding in two spark plug anti-foulers = a lot cheaper than buying the sim...I think they're around $3/anti-fouler at Autozone.

 

@ n00bz

 

just weld in the bung and screw on the rest lol