After remapped Fault Code (17705)

Right after remapped to stage 1+ I've found a fault code saying that "Pressure Drop between Turbo and Throttle Valve (check D.V.!)" as i replaced the Stock D.V. to Forge 007P long time ago and replaced the N75J as well, so where the fault code came form?



Gave it a search on the net, and found that there are 2 little thing called N249 which control the DV (Dump Valve). It is installed between the intake vacuum source and DV itself. When no current is switched to the N249 (default state), the DV will get vacuum or boost from the intake manifold, When shifting gears, you let off throttle, N249 closes and vacuum is generated which can open DV to vent boost (which cannot enter engine, because N249 is closed). which generate the fault code with "pressure drop between Turbo and Throttle Valve"

The following picture is showing the N249 (the GOLD thing...)




Some say, just remove the N249 valve and connect it with a T-pipe, for the electric plug, you need a resistance to connect it up. But you can also pick to change the upgraded parts, as i searched on ETKA and it came up the following diagram.


With the upgraded parts 06A 906 283 F (Solenoid Valve)
Here is the updated one found in ECS Tunning....

Fault Code: 17705 (Pressure Drop between Turbo and Throttle Valve)
Solenoid Valve: 06A 906 283 F