azmak Posted May 27, 2023 Report Share Posted May 27, 2023 At low turbo boost (about 190kpa) it is stable, but as I turn it up it hunches. Please look at the data file and log file and instruct me if there is a problem. Log - 2023-05-27 11;34;59 am.llgx Quote Link to comment Share on other sites More sharing options...
Adamw Posted May 27, 2023 Report Share Posted May 27, 2023 The oscillation is due to too much proportional I think, but there is quite a bit of other stuff wrong. You really need to tune it in open-loop mode first. Wastegate % DC2 table has TPS(sub) on the Y axis, it should be TPS(main) since you dont have a sub sensor. This table also has DC values of 75% in it, but the log shows you only need about 40% to achieve the target boost. Quote Link to comment Share on other sites More sharing options...
azmak Posted May 27, 2023 Author Report Share Posted May 27, 2023 I was wrong. I have been redoing it in open loop since a while ago. Thanks again for your prompt guidance. Quote Link to comment Share on other sites More sharing options...
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