A while back I saw a post where someone showed the manufacturer part number for the plug and retaining cap that caps the air injection pipe attached to the S4 cats. I meant to subscribe to that thread but evidently got distracted. Anyone have a link to that thread?

Mike

 

930 113 153 00
Cap on the manifold?

 

I posted details of a cap which screws onto the cats on the air-injection pipe. Only useful if you've removed everything above the cats in the way of air pump equipment.

https://rennlist.com/forums/928-foru...read-size.html

Funnily enough this came up in someone else's thread earlier today.

 

Thanks Hilton. That is the part. My air pump was removed by a PO. The pipe with check valve from adjacent to the passenger cam cover down to the cats is all that is left. I hate the way it looks with the piece of hose on the check valve and the red plastic cap someone taped in there. I wanted to remove the pipe down to the joint by the manifold outlet but couldn't find anything to properly cap off the remaining pipe to the cats proper.

Now I can get a cap ordered and remove the pipe entirely. It will go in the box with all the other air pump parts should I ever move to a state that requires all original emissions equipment and tail pipe sniffing.

Thanks

Mike

 

I think i stuffed a dime in there at one point.