Breather Pipe Query

[Robbo-80]

I've just about completed my M52 conversion on my E30.
Just tidying up last remaining jobs, where do you attach the black breather pipe that's on the fuel rail?


Any advice,

Stevie.....(Robbo-80)

[Jimbob]

Is it a really thin hose? This one runs to the underside of the intake manifold.

[Robbo-80]

Yeah that sounds like the one, is there not a couple of ports under the intake body or doesn't it matter which port you attach the breather pipe too?

[Jimbob]

On the right.

[gudgeon]

As per the inlet sticky, that hose is the fuel pressure regulator vacuum.