Desired RPM PID dipping below tune value

[trapvette]

I have all (i think) my idle rpm values set to 900. base setpoint, startup in gear. startup P/N, VSS, and min rpm reference. It'll show 900 until i drop below 1.5mph (adaptive idle?). I did see a post about the car trying to running a catalyst test, and that being the only thing that can pull my desired RPM below that point. Did I miss something?

[Cringer]

I have all (i think) my idle rpm values set to 900. base setpoint, startup in gear. startup P/N, VSS, and min rpm reference. It'll show 900 until i drop below 1.5mph (adaptive idle?). I did see a post about the car trying to running a catalyst test, and that being the only thing that can pull my desired RPM below that point. Did I miss something?

Yes the O2 and Cat tests are enabled, but I don't think that is the issue. Without a log it is just a guessing game...but the first thing that jumps out at me is the Min Final Airflow is pretty high, I would lower that. Then if there is still a problem I would look at the Throttle Follower Torque table. Min Final Spark table may need adjusting as well.
tests.jpg

[trapvette]

I appreciate the reply, I'll look into lowering my minimum final airflow and see what that does. I'll also try again with finding the STIT LTIT PIDs while logging. You must be on a different vcm suite version than I am, the catalyst test drop down isn't shown on my computer despite having parameter access

[Cringer]

I appreciate the reply, I'll look into lowering my minimum final airflow and see what that does. I'll also try again with finding the STIT LTIT PIDs while logging. You must be on a different vcm suite version than I am, the catalyst test drop down isn't shown on my computer despite having parameter access

This is a Gen4 there are no STIT or LTIT PIDs. People create their own problems by raising Min Final Airflow and spend weeks/months tuning around it. Gen4 does not idle like a Gen3.

Yes the screen shot is from 4.8.7. Poke around my sig line for an Easter Egg.

[trapvette]

Heres a log before I made changes. according to your EOIT program I'm spraying fuel through my exhaust for about 110 degrees. that would explain my hot start issue. i know i'll have to redo fuelling after changing that. i lowered airflow final minimum to about 12.5g/s for now. also, you must be pretty popular, your inbox is full.