The bumps in 02 seem to correspond to the bumps in fuel pressure.
Looks like something may be up with pump or regulator from that.
Is it a bypass or a dead head, bypass pressure log should nearly be flat / smooth regardless of rpm or engine demand if operating correctly
Some numbers on the o2 scale would be handy, can you do a screen dump with just o2 graph showing scale and expand a bit vertically so we can see what's going on.
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Working on going faster (and now staying dry at the same time !!)
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