Dude, review the thread. I already explained the fix a couple of pages back. I even included a link to a DIY with pics.

Edit: Here's the link to the exact post. It's called the non-fouler method. You can also just stuff some steel wool into the port and apparently that works as well. Hope this helps! (Actually, I hope your HFCs never throw a CEL to require one of these fixes to begin with!) http://www.the370z.com/intake-exhaus...html#post55946

Ahhhh woops, my bad. Thanks again, great info on this thread :tup: I hope you never throw any as well, but aparantly you know how to fix em in case they do!

You said you ordered them, right? As in...you haven't installed them yet? If you haven't installed them yet, then you might want to go ahead and stuff some stainless steel wool into those ports right from the get-go, prior to installing. Then you're covered for sure and don't have to worry about getting a CEL in the future. That's what I'd have done had it occurred to me before I installed them.

Yeah, they're currently on backorder, but when they come in, that's a good idea. I'm assuming there's some kind of small screen or catch inside the port so the steel wool won't slip out of the port and into the rest of the cat?

Also, any idea what kind of steel wool? Just any stainless steel wool from Home Depot would work?

No you have to get super uber special stainless steel wool. Only pure stainlessanium steel nitrate with mega ferro-magnetic qualities will help in the atomization of the A and P particles within the C02 condensation patterns. Without it, not only will you void your warranty, but you will also turn air passing through the exhaust into prancing miniature unicorns. Unicorns = rice.

Yes...normal SS wool from home depot...

I believe so, yes. But I've never actually done this myself. I've only done the non-foulers. The steel wool suggestion came from NIZMOZ a few pages back, so he'd be a better person to ask:

LOL. You are such a smarta$$. :stfu: :rofl2:


In all seriousness though, RCZ do you know if there's any chance of the steel wool becoming dislodged and falling into the exhaust?

Haha, awesome, thanks for the input guys. Just added +Rep for the three of you (RCZ, semtex & NismoZ)

Axio, I was just looking at a photo of the HFCs. That extension tube is actually pretty small/thin. If you stuff a small wad of SS wool in there, I doubt it's going to go anywhere. There just isn't enough space for it to move around. What I'd do is stuff the wool in just a little, then allow the O2 sensor to push it the rest of the way in as it's being tightened (vs. pushing it in with your finger or a screwdriver).

aww you missed the unicorns part.

I would assume that is a possibility. I assume the non-foulers purpose is to take the sensor out of the direct flow of the exhaust gas, which would cause it to miss read and trigger the cel? I am not sure about this, I have always just assumed this was the reasoning. I also assume the steel wool is there to create even more of a barrier (yet allow it to pass enough gas through to the sensor) while not melting under the high temperatures of the exhaust gas.

Right?

This is the reason why Berk and others have decided to create out-of-flow adapters for the o2 sensors (built in non-foulers). This is the reason why I am assuming Stillen's HFC will have this feature as well, perhaps evolved in one way or another to keep it from affecting flow.


Careful with the O2 sensor Semtex, it is very easy to damage them, they are sensitive.

Stillen's HFC doesn't have this feature. Have you seen them yet? They're up on their website with pics. Available for sale. That's how this whole side-discussion got started -- I pointed out the lack of this 'feature' on the Stillen HFCs, which means they'll need anti-foulers. Some folks chimed in and said that even with Berk's built-in extensions, you still might get CELs, hence the steel wool.

RCZ, correct. Non-foulers are there exactly as you said, to move the sensor out of the flow to prevent them from triggering a light. Some cars are more sensitive than others and it will trip faster. So the SS wool comes in handy in that case.

Hence my comment semtex.

And expensive.

Apparently O2 sensors are female!