I just installed turbonetics turbo . What do I do to keep the ck eng light from pulling code 0420 . ? Some say a wideband ?

 

that has to do with the secondary o2 sensor, the reason its comeing up is the fact you are no longer running a catalytic converter. the fix for this is to use two short anti-foulers...do a search and you will see what im talking about. the two anti-foulers screw onto the secondary o2 sensor (one of the anti-foulers is drilled out with a 1/2" drill bit, thats the first one to screw onto the sensor. The second is left undrilled and screws onto the first anti-fouler. then the whole thing is put back on the s-pipe, this keeps the sensor far enough out of the exhaust stream to a point where it simulates having a cat inplace.

 

where can i buy these from and also thats the code for the second o2 or first ?

 

https://www.scionlife.com/forums/tc-tech-diy-1818/antifouler-cel-fix-header-45083/



here !!



and also this will work right ?

 

I did it it works!!!

 

it worked for me and all of my customers (btw its for the secondary o2 sensor aka after cat aka downstream)

 

Here's an alternative solution that works at least as well and it's 304 SS. I've been using this for about 30k miles now without a single P0420 code. They also sell a straight one for $15 that would be the same as 2 stacked HELP anti-foulers.

http://bigdaddiesgarage.com/angled-cel-fix.html

You can also buy very similar 304 SS units from Tsudo, Weapon-R, Strup, Megan, etc. I haven't tested the Big Daddy "Mini-Cat" but it's a very cool idea.

http://bigdaddiesgarage.com/mini-cat-cel-fix.html

 

mini cat is a pretty slick idea

 

Yeah, I really wanted to try the mini-cat but $50 was a bit too steep for me.

 

I hear ya...im looking for a tial large blue wastegate spring and im not really wanting to spend the $30 for it...(crap im getting cheap...lmao)