06touringcoupe

do the dc sports or megan racing headers for the tc come with the hole to screw in the 02 sensor? and if not then is there a kit or somethin u can get to do like an 02 sensor delete?

KINGxOFxSKA

Uhhh WTF are u talking about?

06touringcoupe

what do u mean what am i talkin bout i'm askin what ur supposed with the o2 sensor thats stickin out of the stock manifold when u put headers on the car

rodlandscion

I'm very sure that they do...and in the unlikely event that they didn't it would be a 5 dollar fitting and a 20 dollar weld.

OldYeller

That is why it is illeagal in CA for the headers or intake on a tC

rodlandscion

^No that would be because they eliminate the catalytic converter in the header making them less emissions compliant

rodlandscion

and why would you want to get rid of the o2 sensor fitting...that would be very pointless; your car would probably run in open loop all the time, and without engine managent you would not benefit from that at all...

06touringcoupe

well how the hell r u supposed to put headers on ur car without pullin a CEL?

06touringcoupe

and also if the headers don't come with the hole is it possible to drill one and tap it so u can screw in the o2 sensor

KINGxOFxSKA

Dude... every header made for the tC has a hole for the o2 sensor.

rodlandscion

The way people try and avoid the CEL is by using the anitfouler method. This pulls the sensor out of the exhaust stream in order to get readings that are acceptable to the ecu. Search around for it; anitfouler. Simply taking out the sensor will result in a constant CEL.

06touringcoupe

thank you thats all i needed to kno

Lilroma

Now I got the anti-fouler and put in the dc sport ceramic header... i still have teh CEL on?? wat now??

rodlandscion

It's never a for sure thing. There are a few methods out there; some work, some don't. I think Prototype XB has the best setup since he never threw a CEL while he had his Dezod kit in. Good luck!

KINGxOFxSKA

add another anti-fouler on it and try to get it out further away from the spipe until you don't get a CEL.

Lilroma

K, Thanks[/url]

KINGxOFxSKA

BTW... your putting the antifoulers on the spipe o2 sensor right? (not the o2 sensor on the header) Just making sure.

Lilroma

[/quote]BTW... your putting the antifoulers on the spipe o2 sensor right? (not the o2 sensor on the header) Just making sure.[/quote]

I have one antifouler in the header w/ the o2 sensor.. that wrong?
A little unfimiular about where the s-pipe is??

KINGxOFxSKA

Yup thats why your still having the CEL. The anti-foulers should be on the s-pipe (downpipe). Take the antifoulers off your header.

The s-pipe is the one right after the header.... the pipe where the header bolts onto the bottom. There is another O2 sensor there. Pictured here:


You'd have to get under your car to see it.

Check out this thread for more help:
https://www.scionlife.com/forums/viewtopic.php?t=56520

Lilroma

K, Thank for all ur help