mk5 gti rattle/sound during idle

[dubsweeper]

yeah ive had several FSI injectors out, and cannot see the holes in the end due to carbon buildup, it really is a wonder how they continue to spray fuel.

having quality fuel passing through the injectors shouldnt cause a problem ? tho i also have a slight miss fire on idle , maybe due to carbon buildup !

[buzuki]

I dont think any amount of good quality fuel is going to stop carbon buildup. But it will definitly take longer Id imagine.

[Jmac]

Its no theory , it is the injectors unless you are having a distinct knock, in this case you may have a worn bucket and or a worn inlet cam, this happened early in thepiece but there is still a few out there, AXX is a candidate and early BWA, later ones were better but they are still noisy
Cheers
Jmac

[thezoneR32]

Went to VW today cos the engine noise (sort of a constant mechanical thrash that seems to come on a idle) is givin me the ****s. Turns out after a bit of probing it appears to be the timing belt cover rubbing on the timing belt! bad news is its a bitch to replace, including removing the engine mount. So I might just put up with it for a while. Until I decide to put on some VWR engine mounts!