Hello ALL.

I do an experimental tuning that conversion a z12xe engine from N.A. to Turbo.
Then I remap the original ecu. (fuel, ignition, or airmass limiter)
Seems everything is okay and run smooth (AFR is well range, no knock)
But I meet it seems got some kind of unknown control about throttle response.

- If I drive high speed for a while (over 60mph),
   throttle response will be quicker than original
   and boost spool up quicker. (and make a higher boost around +0.2~0.25bar than orignal)
- If I drive back to normally (under 60mph) for a while,
   throttle response will back to normal.

I use AEM boost controller and set fixed duty rate to wastegate.
Originally I just think that's mechanical problem,
like wastegate spring will soft/harder after warm up.
But It seems change between some related to loading/speed.

I try to tune KFWDKMSN/KFMSNWDK to figure out relationship between boost and throttle angle.
If I tune up WDKMSN/MSNWDK, boost will higher than original,
but just let me know that throttle influence to boost value.

Just do not know what make difference or
there is something control throttle/driver request related velocity or another factor.