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Re: GMT400 Wiring Woes
If you didn't notice there is an inline fuse (on the firewall) for the fuel pump between the relay and the pump.
Yes, the oil pressure switch is just a redundant path to power if the relay fails.
Pretty simple circuit. It should be easy to fix
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My Classics:
'72 K20 Suburban + '65 Dodge Town Wagon
'72 Corvette Roadster +'67 Corvette Roadster
'73 Z-28 Camaro
'63 Ford SWB Uni Pickup
'50 Ford Coupe
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