So my car is still having boost control issues. Tuna and I did some on road testing and tuning the other day. Resorted to open loop because he couldn't sort it on closed loop, boost surging all over the show. Open loop he got it sorted or so we thought! It was boosting up fine with no surge at all, I thought ok sorted we'll leave it there. Then today went for a drive, ambient temp about 5 degrees cooler and it's surging bad again! I bypassed boost solenoid with tube straight from compressor outlet to bottom port of external wastegate and it goes to 10psi and holds there so it's not the wastegate setup. Question, if I choose to bypass solenoid permanently due to not being able to get boost control sorted is it ok? I will just run straight off wastegate springs. Does ecu care if solenoid not reading boost? Should I leave it plugged in and just block the lines coming off it? @Captain Yeah Nahand or @JETURBOif you will answer, and anyone else who wants to chime in. Thanks guys.