I’m going through the wiring and vacuum placement on my defi boost gauge and everything seems to be done properly, but it doesn’t steadily climb or hold its position, the needle just sort of runs around the general area. Is this from the internal waste gate flapping around or is there an issue with the stepper motor or something? I can take a vid if needed.
I should also note that during the opening ceremonies when the gauges sweep through the full range of motion my boost and egt are quite jerky on their way back down.