Clogged oil pump pick up screen, a stuck open pressure relief valve on oil pump, clogged oil passages. Verify gauge operation, unplug oil pressure sender , turn key on, have someone observe the gauge, for single wire, ground the lead to the engine block, gauge should go up. For two wire lead , jump the ends to each other.
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Clogged oil pump pick up screen, a stuck open pressure relief valve on oil pump, clogged oil passages. Verify gauge operation, unplug oil pressure sender , turn key on, have someone observe the gauge, for single wire, ground the lead to the engine block, gauge should go up. For two wire lead , jump the ends to each other.