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Re: Fuel Pump fuse keeps blowing?
And just for reference, look closely at the schematic for the fuel pump power circuit. You will discover that the auxilliary oil pressure switch does NOT act as a safety shut-off, but is a redundant path for fuel pump power in the event of pump relay failure. No domestic GM engine of that vintage used a pump cut off reliant upon oil pressure.
Lots of people make that assumption when they see the oil pressure switch in the circuit - Even dealership techs, but you can usually win free drinks from them on a bet. Bet then that it will still run with the oil pressure switch unplugged. You can run the sump bone dry and the pump will contiinue to operate so long as there is a relay installed and the PCM has references pulses from the CKP.
That is important, since a failed/grounded oil pressure switch can take out the fuse. Been there.
Knowing what connector you unplugged is going to be very helpful - either identified in a photo or by the wire colors in the connector, since the circuit you have open may not be what we're assuming.
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