Question On 02 Sensors Hole

[blacksport]

I have Pace setter headers and the fitting on the Y pipe that has the plug (I dont know what its for, maybe an 02 sensor that my car doesnt have....), well the plug fell out. I cant remember if we didnt tighten it or just didnt put it in but I cant find it and need to buy another one.

Does anyone know what size bolt I'll need for that fitting?

[grayman]

is it just an o2 sensor bung? if so you can order o2 sensor plug. or stop by a muffler shop. they should be able to sell or give you one.
check if that hole looks the same as those used for your 2 manifold 02 sensors and /or the post cat sensor. if so...just get the above mentioned plug.
you want a plug designed for exhaust...don't just use some normal old metric bolt from the drawers at a random hardware store. you need high heat tolerance metal...aka...exhaust rated metal/fittings.
what ever plug you use it should come with a little compression ring...it acts as gasket when you torque the plug...similar to spark plug compressio ring.

oh yea, manual trans cars have some sort of 'air tube' from the manifold/headers to the cat or vice versa or something. you have an auto trans I believe so you do not have an air tube. plug is the way to go.

[ February 07, 2005, 03:22 AM: Message edited by: grayman ]