Beretta.net

I have a 93 beretta with a 3.1L v6, I noticed that on the throttle body that there is a oblong plug with vacuum lines going into it. there are 4 holes for what I would guess should be 4 vacuum line however I only have three vacuum lines coming out of it. The one that is missing would be the very back one(or the one closest to the firewall. What is supposed to be there and where does it go.

IIRC, that goes to the EGR. Just behind the throttle body on the back corner of the intake.

I don't think that was ever used on the 90 and newer 3.1s in the Beretta.

On my 90GT there were only three. The other port was blocked off and unused.

Your right Cliff. I forgot the newwer 3.1's and what not got an electric EGR and not Vacuum.

Check to see if it's an acctual hole and not just blocked off.

Thanks, as it turns out the hole is plugged.

i have a 92 3.1 only had 3 lines. look at your vacuume routing guide under your hood