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converting three wire fuel pump to a two wire fuel pump

Discussion in 'Mitsubishi Minicab References' started by Joel01, Nov 17, 2015.

?

has anyone tried to change fuel pump?

  1. Converting from three wire to a two wire fuel pump

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  2. Wiring setup?

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  1. Joel01

    Joel01 New Member

    Has anyone changed the three wire fuel pump on a 1991 Mitsubishi U42T to a two wire fuel pump?
     
  2. Clint Moore

    Clint Moore New Member

    I know this is an old thread...but I need to do the same thing. Can you tell me how you wired in the 2 wire pump?
     
  3. Basscor

    Basscor New Member

    I don't know if I did it "correctly" but I used the black to black on the pump, and then black with white stripe to red on my pump
     
    Clint Moore likes this.
  4. Basscor

    Basscor New Member

    Reference photo, just crimped on some spade connectors
    20220420_094729.jpg
     
  5. Arty

    Arty Active Member

    Was the white wire in the picture just unused?
     
  6. Basscor

    Basscor New Member

    It is currently, originally I had it tied in with the white/black wire. but then I was getting a no start/spark issue. Looking back that may be a different issue entirely as I am still having trouble getting it to run reliably. I'm going to start another thread for that issue though
     
  7. Basscor

    Basscor New Member

    I also purchased the electrical manual for this model year of minicab which showed up a little while ago. Let me dig into it some and figure our where in the truck each of these is supposed to go.
     
  8. Basscor

    Basscor New Member

    The white wire connects back to both test point c-74 and the -negative of the ignition coil
     

    Attached Files:

    Clint Moore likes this.
  9. Clint Moore

    Clint Moore New Member

    So what happens if you don't connect the white wire?
     
  10. Basscor

    Basscor New Member

    Nothing as far as I can tell.
     

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