eric0122 Posted December 20, 2023 Report Share Posted December 20, 2023 Hi everyone, i have a question about the boost drop from 1.5 bar to 0.3~4 bar when the car is running after 5000rpmwith full throttle. The car is using boost controller does not control by ecu. i did no connect with the actuator. problem still occur. i would like to know about the ecu will control the boost like this or not. thanks a lot lun boost cut.llgx GC8-lun2 boost cut.pclx Quote Link to comment Share on other sites More sharing options...
Adamw Posted December 20, 2023 Report Share Posted December 20, 2023 That doesnt just look like the typical drop you see with a restrictive turbine, this looks more like the wastgate is being bled open by the controller, or a plumbing/mechanical issue. Since we have no idea what the standalone controller is doing this is pure speculation. You will either need to connect it to the ecu or verify some other way such as disconnecting the wastegate hose. Quote Link to comment Share on other sites More sharing options...
eric0122 Posted December 21, 2023 Author Report Share Posted December 21, 2023 Hi Adamw, sorry for reply you late. I have disconnect the hose of actuator. But still the same. I always think this is the machincal problem not from ecu. But someone always say is from ecu. So that why I need the confirmation by professional. Thanks for let me know. Quote Link to comment Share on other sites More sharing options...
Adamw Posted December 22, 2023 Report Share Posted December 22, 2023 If the boost doesnt increase with the boost hose disconnected then there is a mechanical issue. eric0122 1 Quote Link to comment Share on other sites More sharing options...
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