Firebirdhorn

For those of you that own the 2.2 litre, and have put the ss/sc downpipe on your car, did you start out with two oxygen sensors on the stock 2.2 downpipe? One before and one after the cat? I bought a ss/sc downpipe from one of the kansas city guys, and I only see one oxygen sensor bung on the downpipe, but mine looks like it has two. Anything helps. Thanks!

ei3dag3

iTrader: (5)

the lsj downpipe only has one homie :P

Firebirdhorn

i see that......but what i am asking is if the other 2.2 guys also have 2 o2 sensors on the stock 2.2 downpipe. just wanting to check with people that have done this with their ls or lt models before i go get another o2 bung welded into place. thanks for the quick response though.

tru2nrtt777

iTrader: (1)

What year is yours, they may have changed placement by year, my 06 has one on th emanifold and one after the cat on the DP.

Edit, just noticed it is an 08. If I remember right you should have two on your DP, to make it work you will need another bung welded.

ei3dag3

iTrader: (5)

we only have one as well i have an o7
my friends 07 also only has one

one in the header and one after the cat

Firebirdhorn

mine is an 08.....lemme check again to make sure that is not the one i am seeing tru2nrtt777

yeah, definately on the downpipe.....****. thanks guys

D4u2s0t

there is no rhyme or reason when it comes to different parts on the cobalts. some have 2, some don't, some have 3. it's very hard to change parts on the cobalt without actually looking first to make sure they will fit.

originaladrian

i have a 2.0 DP with one o2 sensor if someone wants to buy it off me for cheap

tru2nrtt777

iTrader: (1)

If you really feel like trying it you could get a SS manifold and screw the precat o2 into it but I am not sure how your ecu would react since it is calibrated for that distance.

60 shipped to 28311?

originaladrian

u have a PM

Firebirdhorn

i have an extra ss manifold i got from m-dub, but i think i'll just get another bung and weld it into place. thanks for the responses guys.

yellow_cobalt

yes, the 2.2 has both the oxygen sensors in the downpipe. the lsj has the rear in the downpipe and the pre-cat one in the manifold. you can easily go to an exhaust shop and have a o2 bung welded into the downpipe, or pick up the lsj manifold. 07 had the lsj style manifold but, like i mentioned, did not have the oxygen sensor in the manifold. so if you dont already have the lsj manifold, it may be cheaper and better just to get the o2 bung and weld it in (if you have 07, and i guess 08 probably have the same).