Thank you for yor quick reply!!
This is an 2004 Ultra CVO 103" which has a history of missing/stutter at times, but not always.
Problem emerged when i was trying to map the ECU and discovered that the TPS was all over the place.
Done all the tests suggested by the Harley service manual, but can't find any faults there.
All relevant wiring to/from TPS is checked and can't find anything there.
Never had the need to check a Harley TPS with my Pico before, so in a way i'm curious to know if i'm looking at an ok waveform? Used the scope on several other TPS'es, but none of those have shown this kind of interference....