. . . the new one is firing but I can't get any suction lol
cherrycakes, I suspect you're not using a genuine Vision Vivi Nova. Vamos are made to work well with genuine Vision Vivi Novas: when screwed down, there's a good 1 mm. gap between the VVN and the Vamo. This isn't the case with most clones and knockoffs, which mate firmly with the Vamo baseplate with no gap.