I found this laying in my engine and not sure what it is. it has suction and I believe it leads to the PCV pipe...I cannot find where it goes however. My car has an abnormally low idle so hoping this has something to do with it? If someone could tell me where this goes I'd appreciate it. Thanks

 

It kinda looks like the fresh air check valve for the opti. I have an MSD opti so I am really only guessing, since mine doesn't look exactly like it.

 

Shoebox has the info - filter/flow reducer for the Opti vacuum harness:

http://shbox.com/1/opti_vacuum_hose.jpg

 

What its missing is 1/4 inch rubber line, and the tiny 1/4 plastic elbow that plugs into the top air intake elbow, if you see A little hole in that elbow, then that is it, or at least that is how mine is set up, hope this helps.

 

Hmm it does seem I am missing a part of it. Anyone know where I could order this? Looks like Im missing half the line.

 

Just out of curiosity would this cause any idle problems or hard starting? it seems so small I dont think so..

 

You can get the hose at most auto parts stores by the inch. You might be able to rig it up to work with a little playing around.

 

There are 2 vent lines. The filter/flow limiter is in the vacuum line that runs from the nipple on the bottom of the Opti cap to the vacuum on the driver's side of the intake manifold. That's where the part he is asking about is located, and Shoebox's photo shows the complete line. There is a line that extends from the filter/flow limiter to the Opti, that is not in Shoebox's photo.

The air supply line runs from the air intake elbow, where it plugs in with the blue plastic elbow, to the nipple on the bottom (rear section) of the Opti. There are no fittings other than the blue elbow in that line.

http://shbox.com/1/opti_vacuum_harness.jpg

http://shbox.com/ci/opti_vent.jpg

 

Fred, thank you for your links! Very useful for a newbie like me!



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