The follower torque tables are weird on this ECM, E67 is like somewhere in between gen4/5 I guess, seems to be missing things that it should have. There isn't engine torque values , it's all coefficients except the follower values. This thing is a huge PITA compared to a haltech or holley. I think it's missing some tables. Can't even log certain PIDs as they seem to be straight up missing from either hptuners or the ECM itself. I got it pretty close though by adjusting the follower values and cranking up the min air.
For example, the thing will idle fine at 9g/s min air, but if i blip the throttle it dies on the way down (bypasses the idle point and goes to 0 like it's not even trying).
So I set the min air to 10.8g/s and it is catching it on the way down but still goes past idle, however setting the min air up that high caused a lot of idle hangs and cruise control type effects so I adjusted the throttle follower tables (added a lot more over stock for the higher rpms and less around 1k rpm) which then got rid of the cruise control like effect or high idle hanging for a while.
So what I'm thinking is I need more min-air, even though technically it doesn't need it to idle, but it needs it to keep the rpms from dropping too fast near idle so it has time to react.
This seems to be a combination of min air and follower values. I also tried adjusting the proportional table around idle and see if that makes any difference, it's coefficient based and so far i haven't noticed any change when modifying it even 50%.
The lack of documentation on what table it is using and when is really frustrating. I'm pretty sure this issue is due to my super light carbon fiber/aluminum clutch setup the rpms drop like a rock at lower RPM values like 1500 and below due to really low rotating mass, even my crankshaft is lightweight.
Engine is basically similar to LS7 with heads,cam,intake,headers,lightweight clutch