mxracer420

ok i went and had a full 2.5 " exhaust fabbed to my sk2 muffler and was told if i put my test pipe in which has has the bungs for both 02 sensors it will throw some check engine lights? i was told it will throw some driving error codes.... if they r both still in there r we ok? or do i needa remap and bypas them?

nahonda04

wrut are you asking? do you have CELs? if you have CELs, you will need to bypass them, i.e. defouler or kpro

mxracer420

ok right now i still have the stock cat in the car and no cel's the exhaust shop told me if i put the test pipe in the place of the cat with both 02 sensors in the test pipe it will thorw cel's my question is will it actually throw them?

josh's ep3

More than likely it will, but doesn't always.

mxracer420

ok im not familiar with k sereis but with a b series i was told if it throws a cel just reset the ecu and it will go away sometimes come back but also sometimes stay away can u do this with k's too?

nahonda04

b-series and k-series do not operate in the same way, what may work for B may not work for K and vs versus, resetting the ecu may provide a temporary fix but will not solve your problem, as stated before in my other post you will need defouler or kpro to bypass

turboteg2nv

dude can you explain that one more time, i r confused mmkay

nahonda04

dude i hope i made it clear enough....maybe i should post it again lol

2000siturboR

yes you will need to disable the secondary o2 sensor. its simple second o2 only is basicly and emission thing, to make sure cleaner air is leaving the exhaust. i think it does not affect the way the car runs. i heard of ways to get rid of the cell by letting the o2 sensor like, hang it somewhere it can get clean air but i think most o2 sensors need to sense heat to work. but what i would do is just got get k pro. that the right way to do it.