ATTENTION MAZDA GURUS (millenia)
 

1995 millenia, miller motor, supercharged.

hey I'm having a problem identifying a vacuum part. It is on the firewall, passenger side. When I purchased the car it had nothing attached on one side and it is a open vacuum leak. One side is directly atached to the ABV solonoid valve. The othe side goes to?????. any help please?
hope these pics workAttachment 6836

Attachment 6837haven't had any luck with the local dealerships

RE: ATTENTION MAZDA GURUS (millenia)
 

Since that looks like a check-valve there (in white) could it bee some kind of a blow off for too much positive pressure in the system?
I know nothing about the Millenia, but your post and pictures intrigued me.

RE: ATTENTION MAZDA GURUS (millenia)
 

it is a constant vacuum leak

RE: ATTENTION MAZDA GURUS (millenia)
 

So what happens when you plug/block the line?

RE: ATTENTION MAZDA GURUS (millenia)
 

it stops going fffft. he he . also idle slows a we bit

RE: ATTENTION MAZDA GURUS (millenia)
 

Well, if anything else improves, like fuel mileage, smoothness and the like,and nothing seems to suffer, I would say plug it!!And be done w/it.:D If a definitiveanswer comes to you @ some point in time deal with it then.

RE: ATTENTION MAZDA GURUS (millenia)
 

I am allready getting over 30 mpg on the highway with it open. Tranny seems to shift smoother with it pluged. I know it is not there for nothing. It must need to end up somwhere. Some thing is not getting the vacuum it needs. [:@]

RE: ATTENTION MAZDA GURUS (millenia)
 

Some years' have them, I think. Going by what it looks like, it could be a "breather" tube to enable movement of the ABV, not normally under direct vacuum. If it is, it would indicate that the leak is coming from the ABV.
I'd do a test on the ABV to see if it holds it's position when a vacuum is applied. Best done with a vacuum pump of course but just sucking a bit of tube joined to the other port(s) might show the leak up.

RE: ATTENTION MAZDA GURUS (millenia)
 

Sorry, I'm talking rubbish - thinking of the EGR not the ABV....