hey guys well my story is this i recently did a remap it spikes boost at 19psi and then drops to 14psi. i tunr off the car after a while i start the car its in limp mode. i turn the car off and restart its fine it peaks at 19psi. when i scanned it, it showed i dont remember excatly pressure drop or something of the sort between intercooler and ... (check DV!).

what do you think is the problem? my car has 117k on it 2001 tt 180bhp

 

if you are still running the oem dv you need to replace it.

 

the oem dv doesnt hold 19psi !!! and would it cause limp mode

 

the stock dv has a diaphragm in it.....it likes to tear.

 

^ depends really...

since you're an early 180TT (ATC) im pretty sure ur running the weak 710C DV...

the later 710N and revised RS4 dv, the 710P have the stronger diaphram

 

I had a similar problem, after getting the APR flash my car would go into limp mode now and again, but after turning the car off and on again it would be ok. I changed out the stock DV to the forge hybrid BOV/DV and the problem hasn't occured since after 200 miles!

 

why the oem dv doesnt hold 19psi!!!

 

because it was engineered for less psi.......engineers are stupid !!!

 

^ why must you post nonsense? The car is now 8 years old and all that time is more than enough to wear out a rubber diaphram. Its just that the increase in heat and flow that showed that is was failing. For all we know it could of been bad for a long time. There are many people running stock dv's on BT with alot more than 20psi, some with 2 710's in fact.

 

cincyTT could this be caused by something else, another question would a failing dv cause this problem because it doesnt seem like its leaking boost.