When datalogging on a warm engine using a very fast laptop, every 72-75 seconds or so, it seems as if the whole system temporarily shuts down and powers up again instantanneously. Revs and target idle go to 42rpm, air temp and water temp to 59F, injectors duration to 177ms, MAP to 1174mb, 3-step settings to 3557rpm etc etc...
Also, a bunch of error codes pop up for 0.1 seconds or so.
Code 41 (primary o2 heater) is a pre-existing condition. The CEL comes on within seconds of the engine being started but will go off every 5mins or so when datalogging - stays on permanently when not datalogging.2. O2
Finally, in the sensors window, the value for datalog error is "on" all the time. Not sure if this matters.
If anyone has any ideas as to what might be causing this or how to solve it, please let me know