SORTED!! whine noise from induction?

[Giro]

golf gti 1.8t
2003 AUQ
86,000 miles
problems still to solve..... timing slightly out,been like this for a while,fault code camshaft sensor, speed sensor, inc

hi i have a whining noise coming from the induction area of the engine not belt side
there is no noise while ticking over until i rev up and bring the turbo in but there is no smoke from the turbo
sounds like a belt catching and gets louder when reved up, car runs fine and no fault codes

the day before i recived my new recerculating valve and fitted it road tested and everything was sweet
next day from work did a ew laps of the town then the whining started, pulled over and herd the noise coming from the
recirculation valve area.
replaced my old recirculation valve and the problem was still there.
removed my induction filter from the maf and still the same noise
checked for cracks in pipes everything ok, then checked the maf and air flow and fault codes on vagcom everything ok

any ideas?

could something come loose on the belt chain??

turbo whining maybe???

[stfc_gti]

sounds like the turbo, as far as im aware they all whirl when rev'd nothing to worry about.

[james2]

Fix the faulty and go from there. Your car might want a upgraded turbo /k04,ko3s.  its letting you know.

[Giro]

had another mechanic check my car today and the noise is defently from the turbo
he said it sound as if the fan blades has came loose and catching the body while reving up
its defently not a normal turbo sound.
very a loud squel/whine like a chipmunk getting f**ked by a pig!lol
but no grinding sounds

could the turbo need a service or is it better just to replace it?
if i need a new turbo could a k04 turbo just fit stright on without any other mods??

[turbokid23]

k04 is a lot of work mate a k03s its a bolt on job

[Dalo Harkin]

very a loud squel/whine like a chipmunk

You sure the DV is the right way round

[pickles]

very a loud squel/whine like a chipmunk

You sure the DV is the right way round

DV should work either way, just louder when fitted in the opposite way i think

[Giro]

update..
cambelt fitted found the engine was a tooth out bringing up camsensor fault and engine speed sensor
job done 
checked the orignal dv was the right way and yes it is
cant really get it wrong

seen two mechanics today both looked puzzled by the noise
one said it could be a bit of plastic in the intake...dont think this is the problem cause it would have to pass the filter amd maf
then maybe the oil pickup pipe was blocked for the turbo and it was short of oil
 then the other mechanic said that the bolts come slack on the turbo or the gaskets blown and is a common fault 

[Dalo Harkin]

The loud chirp type noise is what happens when DV wrong way is all
glad your all sorted 

[pickles]

The loud chirp type noise is what happens when DV wrong way is all
glad your all sorted 

lol