hi peeps, on my s2 the small vac? Pipe from the ecu doesnt go anywhere and isnt blocked off, would i be right to assume it should go to the valve on top of the gearbox?, and would it have been removed for a valid reason?, your help would be appreciated, Steve

 

That sounds frighteningly like the map sensor pipe on some ecu's but cant remember what an S2 one is like as I dont have a lot to do with Rs Turbos if I can help it, lol

 

thats the map sensor pipe, get it connected to the one of the top inlet ports asap as your engine dont know how much boost its running.

 

vac pipe go's from ecu to inlet manifold.

 

please excuse my ignorance as it's my 1st turbo, where should it go on the inlet?, and could that explain why it had a hole in a piston when i got it?,

 

there are 2 inlets at the top of the inlet manifold above the throttle body

 

cheers, thanks for all your help,

 

Yes that would be exactly why it had a hole in the piston when you got it!

 

Hell yeah!

For god's sake when you have it back together and working take it to someone who knows what they are doing to check the fuelling over.

 

i definitely will, i dont want that again,

 

On the plus side I find my holed piston a great paperweight at the office and it's a good talking point with people who think by checking their own tyre pressures they are a dab hand with cars

 

bit like this one lol, although caused by a valve droppin its head poss due to fuelling too lol