Jumping Throttle on acceleration after deaccelration

[DanielD]

Hi,

I am trying to solve problem with jumping throttle after deaccel.

Problem occurs usually after braking when I start to apply more throttle and keep accelerator in steady position. Throttle will start to jump. 

I could reproduce this even on stopped engine. (log attached).

Also attaching current e-throttle settings.  

Engine: BMW S65, throttle actuator is from e46 m3.

Do you have any ideas what could be the problem?

throttle new.llg

[Adamw]

You have logged very few channels so cant be sure from that log, but generally if you have an unstable oscilation when the target is stable then the PID is not correct.  Most likely needs less P or more D, but you really need to adjust it live while doing step tests to find the right balance between response and stability.