ok on my boost gauge I have a negative boost reading as well.
when the car is idling at the lights it reads at -15 to -16 psi.
when the car is moving but with my foot off the accelerator it reads at -19 to -20 psi. Is this normal?
The car is a R32 GTS-t, the only engine mods being full 3" exhaust, bleed valve, blitz bov. still have the stock air box.