no code from a generic reader ... a friend have one so i check this today ...

air intake boot seems good, engine have vaccum (test with a plastic bag when opened oil cap and oil check gauge). i swap the bank 2 oxygen sensor with the old one i changed a couple weeks ago in the first bank ... no change at all ...

check engine doesn't reappear today ... only the jerking

one more thing about this ... no jerking at wide open acceleration ...