I don't see anything obviously wrong with the O2 sensor readings.
Keep in mind that since you're not applying much load to the engine, the fuelling will always be commanded to be stoichiometric. The only thing the sensors will be responding to is the lean condition caused by fuel cut when letting off the throttle, and they seem to be doing that with around 1 second of delay since the throttle was cut. This seems like a normal delay.
Do some data logging while driving, after applying high throttle, to see how the sensors respond to a rich condition. Log knock and misfire as well.
The first log on your second post shows the manifold pressure failing to increase with throttle/load. It even goes down slightly. It seems to be working fine in the other logs. Keep logging MAP to see if something weird is going on with the sensor.
Okay, the O2 sensor readings look good to me on those logs. Absolute Throttle maxes out at only 90%, and load only goes to 95%, but that might be normal. I'm thinking that Relative Throttle should be going to 100%, and so should Accelerator Pedal Position, so log these all at the same time to make sure they're normal.Thanks. You might have missed them....the images which show 2:58 and 3:09pm, on the top left corner, are hard accelerations. 2:58 shows full throttle accleration from stop signs, first gear only. The 3:09 one shows full throttle from stop with a gear shift from 1st to 2nd. Both show computed load values to 90 and 95%. But on those I was not measuring MAP.
Will do. Will post back in a few days.Okay, the O2 sensor readings look good to me on those logs. Absolute Throttle maxes out at only 90%, and load only goes to 95%, but that might be normal. I'm thinking that Relative Throttle should be going to 100%, and so should Accelerator Pedal Position, so log these all at the same time to make sure they're normal.
In addition to the above, I'd log the following parameters for high throttle pulls.
RPM
Engine Load
MAP
Mass airflow
Equivalence Ratio (lambda)
Ignition Timing
Knock Retard
If there's a long term knock correction parameter, log that too. I'd do some longer pulls through 3rd gear, and some pulls at 50-75% throttle.