GruvyTune

My fmax kit put a bung hole in the downpipe. Why, i don't know. the stock gsr has it in the cat.

Is there an effective way to plug the hole? Can someone give me specifics on whether i can find a plug or bolt with specific thread size?

Mr. Vapor

On the Si we have TWO sensors, one in the DP and one in the cat.......i think GSRS are the same

DragII

you put your primary o2 sensor in that hole

the sensor in the hole is the secondary...YOU NEED BOTH

Tomakit

obd1 only has a single o2 sensor. is your car obd1 or 2?

Tom

DragII

if it has one in the cat...it's obdII right? the primary will always have one in the manifold, if there is one in the cat, it would be obdII

right??

GruvyTune

95 GSR obd1.
thats why i'm asking.
do you all know the size hole plug i need to look for?

DragII

no sh*t? man, I had no Idea that the GSR does not have an o2 sensor in the manifold....that is wild.

not sure on the size man, you can always bring her down to the store w/ ya

DirtyLude

Like I said in the other thread, it'll probably be cheaper for you just to take it to an exhaust shop and get it welded shut. i had to get one of mine welded shut. If they charge you anything, it'll probably be minimal. Any cheesy muffler chain will do.

GruvyTune

i'd rather not weld it shut. it will be a nice thing to have when i dyno tune it. What's the thread size to look for a bolt to put in there?

DirtyLude

If you dyno tune it you'll be putting the wideband O2 sensor up your tailpipe, not screwing it into the downpipe. I'm sure there might be a couple places that will allow you to screw in their lambda sensors, but I've never heard of any.

QuickHonda

Maybe its just too late at night and i'm missing something but couldn't he just screw a bolt into the hole. Always use the simplist solution.

GruvyTune

well, its early morning now and that is probably what I will try to do. I had just thought there were plugs made to fit in these and that someone knew what size to get. I'll bring the pipe to the shop and fit one.

thanks

GruvyTune

Got one!!

NAPA sells them.

bigTom

u could of just gotten an o2 sensor from somewhere that toiok a ****... cut the wires and leave it hanging

Nfurno

Just use a spark plug. It'll fit.

roydogg

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Nfurno &raquo;</TD></TR><TR><TD CLASS="quote">Just use a spark plug. It'll fit.</TD></TR></TABLE>

Does it really fit? And would it cause any problems?

accordfreak

buy a plug from your closest auto store. i found a brass one from kragen auto parts. daymn i forgot what the size though but i know they have it.

JonGP4

it fits, then put a wire and a coil on it connected to a switch, and be fast and furious style with flames out the back

roydogg

I stripped the o2 sensor on my dc 4-1 header and now my dp just has a hole in it with no o2 sensor. I was tuned without a o2 sensor in my dp using a s200. Would it make a difference if I put it on or just plug it shut?

turbopimp

OMG... Return of the Living Dead... the bung can be plugged with a 18mm x 1.5 pitch bolt.

roydogg

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by turbopimp &raquo;</TD></TR><TR><TD CLASS="quote">OMG... Return of the Living Dead... the bung can be plugged with a 18mm x 1.5 pitch bolt.</TD></TR></TABLE>

lol.....Yeah the search feature really works .