Jremey
New member
- Location
- Washington State
- Car(s)
- 2009 gti
So a day or two ago I noticed I wasn't getting any boost. I could put the peddle to the floor and my boost guage runs flat at 0 and I used to peak around 15 psi. It feels and runs just like it did when I would get heat soaked. This was completely unexpected considering I just installed the Forge Twintercooler. I've been doing a bit of research and one of the more common things I'm finding is either the DV or the n75. The diverter valve is less than a year old, upgraded piston version. I'm also running a unitronic k04 with stage 2+ software and (this may sound dumb) I'm not sure if it has an n75 only because I don't remember seeing it when I installed the turbo, but I assume it has to have one and I'm sure I was probably staring right at it. I did have a small coolant leak which coincided with the IC install that I'm assuming occurred because the coolant hose got pulled away from the pump a bit while trying to maneuver the cooling stack to install the IC hoses. So I was thinking maybe I was getting heat soaked from engine temps rising from being low on coolant. However I'm not leaking coolant anymore and I'm full on fluid but I'm still not getting boost. I don't have vagcom to look at readings and for now I'm planning on taking it to a VW tuner shop after the weekend but really wanna try to figure this out before having to fork over my cc for shop diag. Any ideas out there?