Intake manifold hoses

[318isbmw]

Need to know where the port on the back of the manifold, on the underside next to where the sensor goes to. Its number 11 on realoem.

Brendan

[hoveringuy]

I think you're talking about the fuel pressure regulator vacuum line.

[etxxz]

^^ yes. confirmed.

[318isbmw]

Mk, so where might the regulator be so I can run it to it?
Thanks for the help

[FredK]

It's the round stainless steel thing on the right side of the fuel rail. It has a nipple on the front of it to accept a vacuum line.

[318isbmw]

It's the round stainless steel thing on the right side of the fuel rail. It has a nipple on the front of it to accept a vacuum line.

Awesome, thanks much.
Mine doesn't have a port on it for a regulator, any ideas about a solution? does the rail have a hole in it for the regulator?

[FredK]

Yes, it should have a hole for the regulator. However, some styles of fuel rails had the regulator underneath the car. It'd probably be easiest to just get a fuel rail with provisions for mounting a FPR.

[318isbmw]

Yes, it should have a hole for the regulator. However, some styles of fuel rails had the regulator underneath the car. It'd probably be easiest to just get a fuel rail with provisions for mounting a FPR.

Mine doesn't have the provision on the rail. Which model's have the regulator under the car? Should be able to get the regulator for one of those and use.

Thanks for the help

[FredK]

I'm not sure which cars have the regulator under the car. I know the OBD-II E36s had it underneath the car, but I'm not sure which OBD-I cars had it that way.

[318isbmw]

I'm not sure which cars have the regulator under the car. I know the OBD-II E36s had it underneath the car, but I'm not sure which OBD-I cars had it that way.

So an obd2 wouldn't work on it because of the electronics I'm guessing. Could I run an aftermarket, or would that mess with the electronics as well. Sorry I'm not good with the electronics part of it all.
Edit: Looks like I can run an adjustable aftermarket one, am I correct in this thinking or missing something?

Thanks

[FredK]

Nah, there are no electronics on the FPR even on later cars. It is simply a vacuum-controlled diaphragm.

Just buy a used fuel rail. They are like $25. That will bypass the headaches of running long vacuum lines, fashioning a bracket, etc. etc.