Just wanted to throw this in our threads. Very interesting :

https://www.evolutionm.net/forums/sh...ad.php?t=99137

 

has anyone tried this for a cel caused by a header on USDM lancers?

 

im very tempted to go get 2 spark plug anti-foulers and try this. Seems like a simple mod .. much easier than wiring in a MIL eliminator or trying to flip your cat around or re-locate the o2 sensor. i just don't wanna get under the car when its raining .. hmmm ...

 

wait, maybe i'm thinking about this wrong:

i have a cel caused by my first o2 sensor (i have headers). so would this contraption go on my 2nd o2 sensor or the first?

 

It would have to go on the second because you want to make your ecu think the cats are working very effectivly. The header causes you to lose a cat so the 2nd O2 sends a signal that the car has too many hydrocarbons comming out the exhaust and not burning correctly so it throws a code. Just curious.....What code are you throwing, I have the same problem with mine? Mine has something to do with the heated part of the sensor.

 

i'm not exactly sure, i think its sensor 1 bank 1 or maybe sensor 1 bank 2........or maybe its "engine 404"

anywho, i know its my header and probably my cel eliminator that doesn't work isn't helping much

 

I had the same problem with my header. I bought two mil eliminators off ebay for $20 used one and it had been in for a year with no problems.

 

i did a search and found this and was just curious if anyone ever did it? im not into splicing wires so id like to do this instead but not sure if it work for regular lancers... everyone on that thread was an evo owner. my car wont pass inspection with ses on... if you did can u pls PM me thanks

 

First you need to figure out what the code is and see if it has to do with you header. But yea, this is a universal fix for any car. It just makes the 2nd o2 sensor not read the exhaust content in its full form. Only a little is getting in the hole making it think your running clean, I did it but I have a oxygen sensor heater problem.

 

i did it about 2 months ago and about 3500 miles. i always had a cel, and after i put this $4 part on i havent seen that little orange light anymore. been almost 3500 mi. w/out an embarrasing cel, woohoo!!
pretty easy to do too.