thats air sund mate, nothing engine mechanical moving parts related as the engine stops and it slows down/lowers pitch before it goes

sounds like its from the inlet side too but cant really tell as im guessing the camera aint stereo

get a dictaphone though and place it on parts of the engine recording when you turn the engine off and see where its louder/quieter ect to find where it is


i would said some sort tiny air presure leak causing a air squeek

inlet manifold i doubt it though,, injector o ring DEFO not as you would be pissing fuel out at a high rate

remove dump valve and test, then fuel presure reg and the breather system and check


after not sure how the ABS pump works but im sure thats mechanical and not servo'd but i could be wrong

aint much left after than

ive got a spare fuel reg you can use to test if you need one,, save spunking the cash on one to find it aint that,,, if you go home via muswell hill/barnet area i can meet you one day if you like