ok...before i start spending money on what the garge have said, can i just get some quick advice??

Around Apil last year I changed the Second Injector and injector line after the connecting bit on the banjo broke.

http://smg.photobucket.com/albums/v4...=rst2010-1.jpg

i got the injector of ebay...cheap with the red pipe.
Could the injector be faulty affecting Cylinder 3?? and causing excessive fuel consumption??

or would this problem be the metering head?

 

Why not take the car to a decent tuner get them to check the injectors out and tune the car. Then take it from there when the tuner tels you your metering heads fucked i'd trust there judgment, but take it somewhere thats reputable and know about rst's

 

could be fella is thier loads of of blue black smoke coming out also does it smell of petrol inside the engine bay
have you checked your plugs to c if the tips are wet or coloured differantly
does the a/f meter flap go down smootly with a bit of resistance

 

goes down smooth. smells of petrol from the exhaust when you turn the car off otrherwise smells ok,

 

Swap injectoprs around and see if the fault moves to another cylinder,

Easy

 

my series 1 does same when u boot it hard do u know if it leaks little bit petrol?

 

mine used a stupid amount of petrol (mines not an rs but im sure its similar) and had a very small splitt one of the fuel hose's causing ti to drink alot mroe fuel (car went faster i might add) then got it sorted by replacing the fuel lines

 

yer that makes sense mine isnt that bad and its only when i boost it really hard when leaving it all night in my garage it doesnt leak at all

 

its not major at all it just leaks few spots

 

its an injection it wont leak while its turned off mate turn the engine on and get it up on a set of ramps ull probably notice it dribbling on to the floor

 

yer thats what it needs just bought it few days ago fella set it up on standard boost its overfuelling does need settin up