Hot-wire fuel pump or how to supply constant power to fuel pump

DWAYNE PIPE

MEMBER
1998 MITSUBISHI MAGNA
3.0L
V6
2WD
AUTOMATIC
30,000 MILES

My vehicle is going to go to scrap yard but I have a full tank of fuel.I want to bypass what the car does normally for the fuel pump to pump and manually supply the fuel pump with constant power so I can empty the fuel tank from supply hose under hood.

Monday, December 2nd, 2019 AT 12:27 AM

1 Reply

STEVE W.

MECHANIC
15,237 POSTS

There are a couple options. The vehicle that car was based on has a wire on the firewall that is used to send power to the pump and bypasses the rest of the circuitry in the car. It shows the wire as a Black wire with a Blue stripe. The other option is to find the pump relay which Mitsubishi calls the MFI main relay 2 and jump power to the pump in that relay. Both options work for what you want.

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Thursday, December 5th, 2019 AT 8:07 AM