Bigc020107
Newish Member
That minor boost oscillation that happens sometimes at higher boost levels is just the electronic wastegate gain oscillating. Will happen with any piggyback running a similar target when WGDC deviates too far off the stock tables. It has nothing to do with "tuning" and everything to do with "boost control". There is no fix for it currently other than running a lower boost target. So if it comes up on map3 and bothers you go down to map2. Later when we get direct JB4 EWG control we can turn it off. Also if it comes up at partial throttle turning on FUD bit7 can also help as it lowers boost target in that area. Finally toggling between sport and regular mode can also have an impact as they adjust the pedal to target relationship.
I just installed my jb4 3 days ago. I am experiencing these oscillations on map 1. I can see it on some of my logs. Seems to only be noticable when accelerating at roughly 60-85% throttle. When I go WOT it smooths out. Also, I dont really notice it in sport mode. I still want to post some logs so I can get some assurance that's really what I'm experiencing.