Hey I took a look at the log.
I wanted to check: are you resetting your ECU at all? Before logging?
If so don't, and don't make any togs till 25klm of driving time to let the ECU relearn.
Not sure why you logged only vvt specific parameters?
You missed this bit: You want to log l&r vvt angles at say idle, 1700rpm and freeway cruise for a few minutes each, then compare for extreme angle difference or inactivity.
By that I meant just holding it steady, easy enough in idle lol, a fair bit harder at 1700rpm and easy in cruise natch.
Now the thing I noticed the last time I diagnosed a car with the 2.5t avcs issue, was that it was a bit flaky at 1700 but I could provoke the shudder by very gently veeeery slowly exploring the rev range between idle and say 2000 rpm.
anyhow here's the log as seen in the scatter graph view of megalog viewer.
Anyhow that screenshot is just 3 different 3d scatter graphs of vvt angle difference vs rpm, or time, with a 0 vvt difference filter applied.
This is the usual graph, split into three concurrent windows for comparision.
Now, there's plenty of VVT angle difference, but not quite enough to be causing the self calibrated systen to go into oscillation or shutdown... Or is there?
What I dont get is how your engine is even acheiving VVT angles with no OSV duty!
So perhaps being able to compare that event with other parameters might be handy,
Anyhow, perhaps try another log, with the usual H6 tuning parameters, these from a quick google search.
H6 logging parameters…
Vehicle Speed
Engine Speed
Intake Air Temp
Coolant Temp
MAF g/s
Engine Load (Calculated)
Throttle Opening Angle
Ignition Total Timing
VVT Advance Angle Left
VVT Advance Angle Right
OSV Duty Left
OSV Duty right
Per Cylinder Misfire 1 - 6
Front o2 Sensor #1
Front o2 Sensor #2
A/F Correction #1
A/F Correction #2
A/F Learning #1
A/F Learning #2
A/F Sensor #1
A/F Sensor #2
A/F Correction #3 and #4 maybe…
That might be getting towards too many parameters, if so, BtSsm allows for eg cloned profiles for different logging setups, rebooting from different backups etc.
Or just change parameters in you currently loaded profile.