I have been through over 100 logs trying to get VVE and MAF correlated to what my wideband tells me, although I doubt my wideband sometimes. I thought the issue was I just didn't have VVE good enough and after messing with VVE and MAF this long its starting to make me think otherwise. No other idle settings seems to change a thing (torque reserve, PI control gains, VTT at idle region, etc.).
Once the immediate torque control source goes to idle the timing starts jumping up and down almost going negative and then going back to almost 30 degrees, which causes really annoying bucking at idle and its especially annoying at rolling idle with the foot on the brake.
You can see it here right when I put my foot on the gas the the immediate engine torque command source switches to axel from idle timing stabilizes:
good.jpg
To me all the other torque PIDs look normal. Zero pedal engine torque, immediate engine torque commanded, and delivered engine torque all say around the same value, my scanner shows I am sampling them all at the fastest rate although it looks to me like some of them aren't actually sampling that fast, so I may be aliasing some of the data since timing and rpm are jumping around faster than some of my torque PIDs seem to be updating. I am also running open loop since I have my wideband in place of my bank 2 O2 sensor.
I still am trying to make sense of the confusing mess of torque PIDs, but it appears to me that the torque PID's agree, but its almost like the torque command is what's fluctuating and making the timing fly around trying to match it, I'm getting almost a 100 rpm swing at idle. I know I should bump my idle up but the issue does not completely go away until about 1000rpm idle.
On a sidenote I just noticed my VVE table at the powerband region 5000-6000rpms is barely over or equal to the stock VVE table and I've adjusted it from wideband feedback, the lower rpms are 20-30% less, this just dosent make sense to me, but I had to take a lot out at low rpms and idle regions from stock though.
20-03-13 15-21-36.hpl
Fifty Tune Modified ECM_TCM_FICM.hpt