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  1. V

    how do i test the ecu????

    I can not determine if my ecu is bad or my regulator. All of the grounds are good, I have 12 volts going to my fuel pump power lead. I nave checked against my enitire wire diagram and found no issues or breaks. Is there a test I can do to guarantee the ecu is bad or the regulators??? 1996...
  2. V

    ECU or Voltage Regulator?

    Alright its been a while since Ive been under the cover of my 86' 150 Mariner Magnum EFI. I just replaced one switch box, and after the install i have no power at the fuel pump. I have not ran the engine since summer 2010 and i mistakenly turned off the battery supply while running when the...
  3. V

    Troubleshooting a ECU

    Alright its been a while since Ive been under the cover of my 86' 150 Mariner Magnum EFI. I just replaced one switch box, and after the install i have no power at the fuel pump. I have not ran the engine since summer 2010 and i mistakenly turned off the battery supply while running when the...
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