turbo chatter since n249 bypass??

[rfn_hodgson]

So remove the one bay valve completely ??

[Wazzzer]

does the end of the one way valve go to the DV?

[rfn_hodgson]

it T pieces off to the dv yea.... i removed the one way valve completely and its still fluttering also had the new piston put in and ive treble checked that ive done the mod right lol

[Prawny]

Simple question then:

Is there a pipe, currently, that runs from your inlet manifold, straight to the top of the DV?

NO T's, no valves, just a length of 3mm vac pipe, from the inlet nipple to the DV, nowhere else.

Do that now if not, as a test, to confirm the DV is working.

[Nino]

Simple question then:

Is there a pipe, currently, that runs from your inlet manifold, straight to the top of the DV?

NO T's, no valves, just a length of 3mm vac pipe, from the inlet nipple to the DV, nowhere else.

Do that now if not, as a test, to confirm the DV is working.

+1