Filin_Dma Posted October 3, 2016 Report Share Posted October 3, 2016 Hello guys,I have just tried to set up BMW with S54 engine. All works instead of DBW. DBW does not open plate to 100%. It seems open about 50%. Parameters after calibration show 100% for APS and 100% TPS. If I manualy open TB, write Open voltage and Close voltage for TP it works but there is error for TP Target. Thanks) Quote Link to comment Share on other sites More sharing options...
Scott Posted October 4, 2016 Report Share Posted October 4, 2016 Hi, the S54 e-throttle is known to have a few issues when it comes to setup. Possibly the ECUs e-throttle drivers are struggling to fully open the throttle. How many springs are you using on it? It is common to reduce the amount of spring to three. Scott Quote Link to comment Share on other sites More sharing options...
Filin_Dma Posted October 4, 2016 Author Report Share Posted October 4, 2016 Thank you for helping. Removing springs and some handmade tricks with calibration helped ьу. Even with removed spring it didnt work. I noticed that after calibration TP, TP(sub) is different from TP(Main). I have changed TP(sub) voltage Open or Close to rich TP(Main). Now I have the next headache with E-throttle Open and Close Loop. I removed ISC valve in hoping to get idle only with DBW. When I switch DBW open or close loop my RPM become unstable and rise to RPM limit. 1000 RPM engine holds with only 0.5-1% TP and I think it needs too smooth regulation. Is it possible to get good idle without ISC only with DBW? Let me know please.Dima Quote Link to comment Share on other sites More sharing options...
Scott Posted October 5, 2016 Report Share Posted October 5, 2016 Hi Dima,We have not done an S54 install ourselves, but quite a few of our ECUs have been installed onto these engines. We have controlled many other engines idle using e-throttle alone.Here are the settings for DBW on an S54 as shared to us by one of the Link dealers.Scott Quote Link to comment Share on other sites More sharing options...
Filin_Dma Posted October 5, 2016 Author Report Share Posted October 5, 2016 thanks!Will try. I used 500Hz. May be it caused horrible idle.Dima' Quote Link to comment Share on other sites More sharing options...
Steve Posted October 5, 2016 Report Share Posted October 5, 2016 Yes. 500hz is way to low. Quote Link to comment Share on other sites More sharing options...
Filin_Dma Posted October 5, 2016 Author Report Share Posted October 5, 2016 All works great! The idle like stock, start up engine is amazing. I am happy)))Thanks for the great support. Quote Link to comment Share on other sites More sharing options...
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