Can anyone tell me what my boost gauge should be reading on idle? (In bar) it only reads up to 8 bar, and I think it's reading around -4bar at the moment I'm trying to find any vac leaks but nothing comin up :/ I've looked for splits etc, I've made sure all vac lines are tight :/ So does -4/-6 bar sound about right it was reading -8 bar at one time(when on fpr it's now on the dv vac line)