There for aircon mate , it changes the idle when ac is switched on to coupe with power drain . So if you have got rid of the air con bin them mate and blank the pipe off on the throttle body 👍🏼 Toby
Cheers dude , Yeah was looking on there but only wanted this one hose as my one has got damaged at one point and I've already got all the rest so was hoping someone might have the odd hoses laying about lol