Hey all, i have a 1998 r34 gtt.
Today when i took it for a drive, i noticed that my boost gauge was reading that i was overboosting when i'm in 5th gear and go over 3.5-4k RPM. It never used to do this, and kinda feels like the boost has spiked up but no extra power is getting put down in the wheels. It doesn't always "overboost" but even when i hold down on max boost, it feels like the engine is working harder but getting power cuts.
I'm running max boost of 12psi on a std turbo and just change spark plugs about a month ago, gapped at 1.1
Any ideas to why this is happening is much appreciated.
cheers