Running the ARAP 6E wideband bin file with it setup for open loop operation only. I am getting glitches on just the Target AFR (dark blue trace). The glitches were not there in closed loop with the stock (no wideband) bin file.
I don't know for sure if it has any real effect as nothing stands out as obvious as you can see in the graph or it is just some streaming artifact.
Has anyone see this effect or know how to eliminate it? Is it from the wideband bin file or open loop operation?
I have never used the stock bin file in open loop or the wideband bin in closed loop.
Also this is using the Ostrich emulator in place of the PROM.
Thanks

 

Surprising nobody has seen this anomaly.

It does not appear to have anything to do with the ECM operating in closed loop or open loop.
It also does not seem to be related to using the ARAP wideband bin file.
There is strong evidence that the actual cause of the glitches is the Ostrich emulator but this has not been 100% confirmed yet.
At some point I will remove the emulator and switch back to using the EEPROM which should definitively show if the emulator is causing this issue.

 

Cant comment on this issue but i have seen “glitches” like that sometimes in other data values in logs. If no obvious ill effects i just ignored

 

Yes it does not seem to produce any real quantifiable effect so I have been ignoring the aberration but it does ruin the cleanness of my nice graphs.