I suggest you clear all the codes and redo the diagnostic check and note the current codes. The Vida ETM test operates the throttle butterfly from closed to fully open 3 times and records the position sensor outputs but these will be almost identical if you already have Sacer fitted. The graph should show 3 similar parabolic shaped curves as the throttle opens and closes. I did mine with the ETM removed and visible as I did the test, in my case the throttle did not move during the test so I knew it was either the motor or the circuit board inside.
I would expect Vida to identify a Maf fault but I am not a Vida expert.
John
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