Help with remapping!

[VWKev]

Whats a split dv ?  :embarassed:

[SteveP]

The orange rubber shown above can split/tear causing a small boost leak and a drop in performance.

Not really been heard of much with the Mk6 (as the DV has been revised several times) but early remapped Mk5 had this as a common problem.

[SteveP]

Also the Mk6 is fitted with the later DV (as shown on the right) which now have an enclosed piston rather than open diaphragm.

[Ess_Three]

I thought I'd heard the Mk6 didn't have the same problem.

So, is it really worth changing the DV to a Forge, or similar?

[SteveP]

^^^ As I said above it's not been heard of much with the Mk6 but I beleive some of the early 09 plates will have the Rev G version rather than the rev D piston type DV.

I know of a couple of Rocco's on the TSI engine that have split the Rev G one when remapped.

[PenguinGTI]

So is there anything I should spot when driving that would indicate a split dv. I really don't think it is this cause the car is still fast. There is no hissing that I can hear or anything when driving.

[SteveP]

The only real ways are to log the car with VCDS and check the waste gate duty cycle isn't pegged to 99% most of the time or remove and inspect the DV.

I really doubt it's the cause IMHO.

Have you been using the same fuel and has the car had time to adapt since the remap was re-applied?

[VWKev]

Ta Steve. 

[PenguinGTI]

The only real ways are to log the car with VCDS and check the waste gate duty cycle isn't pegged to 99% most of the time or remove and inspect the DV.

I really doubt it's the cause IMHO.

Have you been using the same fuel and has the car had time to adapt since the remap was re-applied?

Same fuel. I run it on Sainsburies 97 octane for normal use. The second map has been in the car for a good fortnight or two. But the first map was noticeable the first night it was installed.

The more I read now and think about it the more it points to the map. I guess tomorrow is D Day (Both figuratively and literally D = Dyno Day  ) so we shall see how that goes.

[jdjd]

Ide say my car is miles faster in winter when its colder, My GTI hates warm air.