unbreakable Posted November 14, 2009 Share Posted November 14, 2009 OK so i am working on a friend of mines 78 280z, he wanted me to intsall a aftermarket fuel pump he went with the walboro 255, external pump. I installed it in the stock location in the stock brackets. Put the power and ground on , primed the pump, turn the key heard it run tried to start the car, started and ran for less than a minute then died. Cranked and nothing no fuel, primed it again and same thing happened. Does the new pump need a new heavier relay to stay running, i burnt up my magnetic test leads running the pump on 12v. If any one has any suggestions that would be great !!!!! Quote Link to comment Share on other sites More sharing options...
cygnusx1 Posted November 14, 2009 Share Posted November 14, 2009 If the pump is dying because the voltage supply is dropping out, then yes, bigger wires/relay. Quote Link to comment Share on other sites More sharing options...
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