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I had part throttle jerk on my 335 for a while. I did a walnut blast, new plugs, new coils, none of which fixed anything. I was getting low fuel pressure codes on the low side, so I replaced the LP fuel pump and regulator assembly (both were cracked and leaking a bit of fuel), new LP sensor (that was the cause of the error,) and at same time installed a new charge pipe and cleaned VANOS solenoids. There was no more jerk after that.
It's difficult to narrow it down but my throttle plate was filthy with oil, I think that combined with a possibly leaking o-ring on the old charge pipe connection was causing the issue.
However your AFRs are strange Start with the walnut blast and check all connections at the throttle body/CP.
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