uneven idle v6 4 motion

[crypticx]

It's the blue tube the corrugation are where the tube makes a right hand turn to go behind the inlet manifold and transfers from chassis to engine
Maybe your's has already been replaced with a non oriiginal. it dosen't matter I replaced mine with some good quality flexible rubber fuel line.

[Back Door Shenanigans.]

Ill have a look tommorow thanks though. Just trying to find out if theres anything else that is causing a problem because at the moment mines idling like a drag car which isn't so good.

[graeme86]

Another common vac leak is down near the fuel pressure regulator.
Look at engine manifold on right (passenger) side where the flap mechanism is. You will see the fuel pressure regulator on the fuel rail near there. There is a rubber T- piece in the vacuum line coming off there that can get cracks in it.