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Could someone tell me what the part is called on the back of the head it's some sort of cover/bung that seals a metal pipe that comes off the head it's on the right hand side about half way down if your looking over the engine? Mine seems to be missing just looked at my mates and he's got a silver cover on his with some silicone hose? What's this bit called and what's it do? Thanks for your help
is it a phase 1.5 engine ie 97-98 with the coil pack in the centre of the inlet, it sounds like a bung for the recirc dv, i'm assuming your mate has an aftermarket dv & you have a standard recirc btw dv is dump valve
It's a 2000 car mate and we both have same baileys dump valves got told it's something to do if you have a different turbo ? If it ain't got no bung in won't this make my car run a bit **** ?
Without it plugged, the turbo intake hose will be sucking in unmetered air (i.e. after the MAF), so resulting in higher than normal (leaned out) AFRs. Ergo, the ECU won't "know" about the extra air, so can't add fuel for it to compensate - not good!
Last edited by joz8968; 27 February 2011 at 01:53 PM.