Ive had almost 3 days of trouble free motoring so feel its time to start messing again... First of all... the vacume hoses, what size should i order? 3mm? 4? 5? Im just looking to replace the usual problem ones and maybe the ones you see ( covers do come off from time to time ) No i expect ALL the little bugger fail at some point but i want to keep it looking something like they are ment to be there. Should i get maybe 2m or each or is that a waste?? Now onto the second "issue" The injectors... firstly i would love to clean them but dont quite have Â£40 to spend on buying my own cleaner. So that may have to wait, Around this area on the inlet there is slight dark ( possibly where a wee bit of petrol is leaking out ) looks more oily to be honest as it doesnt dry completely . I assume this means my seals are tired... Im hoping its just the O rings ? do the blue plastic inserts leak? Are they replacable? Now i bought 4 new O rings from TPS to do the job the other week. However when trying to fit these i found out that 2 were fatter rubber and a tighter fit around the injector and the other 2 felt loose and was made from thinner rubber. TPS gave the explanation that 4 go to the top of the injector and 4 to the bottom. but the part number is the same?? I was givven another 4 of the chunky ones ( tighter fit on injector) are these the correct ones for the bottom of the injector??