2002 F4i problem. Anybody here know's what is this hose on picture for? I have problem with TP sensor and when i try to fix it, I saw this hose thats goes from under forth cylinder and it's blocked with some plastic. So is that normal or that hose need to go somewhere, when bike runs there is a vacum on it just like on FPR hose...what shoud i do?

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Hey man...

There's a lil plastic tube like thing sticking out of the bottom of your intake... That vacuum hose goes on there. Can't tell from the pictures but if you say there's plastic jammed into the hose the lil clip on the bottom of the intake may be snapped off in it... If I had my bike ide be able to show you pictures... Unfortunately at the shop

 

Thanks for answer, you think that this little plastic in the hose acctualy is the broken part of throtle bodies? Maybe that is the problem for rough idle, bat it shows 8 blinks on MIL...

 

by sight of the fuel rail nut ... i am guessing that is right side...
that looks like vac line that comes off the lower right rear of the airbox..and what is in there is the port it hooks into..

 

That little platic thing acting like a plug looks like snapped from the bottom of the airbox. Those 2 vacuum hoses don't go anywhere and should be fine like that