David/B3MOG Thank you very much for your very kind offer of scanning the +8 owners handbook... I have one such that came with my mid 80`s +8, and it seems the wiring diagram in mine is generic at best, and does not have an electric fuel pump, or an oil pressure switch or any associated circuitry included...It seems this may be the norm for trad +8 handbook wiring diagrams..? There is a number on the page that may well relate to the diagram W 549 553 81.