Need another vac. line port on the intake manifold.

[Sagaris]

The cap on the intake manifold of my late model 325i has 1 vacuum port for the fuel pressure regulator. I need another manifold vacuum source (for megasquirt MAP sensor) and I am pretty sure I have seen an intake manifold cap with 2 or 3 vacuum ports on it from some other m20 (super eta?!?).

I looked at one from a 325e but it had a larger hole for the cold start injector and I dont want that.

Which years/models should I be looking at for this part? (RealOEM shows a generic intake manifold parts diagram which doesn't help)

[travish325]

Just drill a hole and thread in a 1/8 npt nipple fitting. Easy stuff

[Sagaris]

Not a bad idea, Thanks. I didn't think there would be enough meat to get enough thread for a good seal on NPT but I will take a look at it more closely if I cant source the part im looking for.

[travish325]

Ive got 2 drilled in that intake piece. It helps to put a little jb weld on the threads to seal and keep it tight.

[nando]

there is a peice with two vac ports on it. Not sure why, but it seemed to come on random cars, and it was always blocked off. I traded one from my buddy's car since he didn't need it. plus it doesn't look backyard hackjob mechanic.

[E30-325iS]

Have a look at this thread,

http://www.r3vlimited.com/board/showthread.php?t=195978

not sure if it is correct but it says the part number is.
11611708858

[jlevie]

You have a hand dandy port on the bottom of the throttle body where the evap control valve goes. I'm guessing that you won't/can't implement that function with a MegaSquirt, the valve is going to do nothing.

[nando]

MS2 and MS3 can run the purge valve

[downforce22]

Early euro cars had them for an idle throttle adjustment. They also had a vac line running to the firewall for the valve. This may be the part number from real oem 11611708858

The throttle body is different too. The part number I posted above is for the plate you are asking here is the entire assembly.


Here it is on the car with the firewall mounted control unit.