40 hp 2005 no oil light on after 5mins of running

[danny bell]

guys i have a 2005 40 hp oil injectted out board i have not used it for 3 months its been stored in the garage with the lowest temp of 10degrees C, i started unit in drive with hose connected oil n fuel levels full, after 5 mins no oil light came on , i stopped unit an bleed fuel n oil systems, no change, stripped out checked all wiring and level sender, still no change , have pre mixed oil to use boat tomorrow, any idea whats the problem, thinking oil injection pump but not familiar with out boards?? any help please!!
thanks danny

[boats.net]

Use premix until sure it's working properly, probably VRO pump bad.