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No fuel pump or CEL at KOEO

Discussion in 'ECU's, Electronics, and Tuning' started by UNDR8D, Feb 15, 2008.

  1. UNDR8D

    UNDR8D ...has a job!

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    I am wrapping up an LS swap into an EJ2 and I have no fuel pump or CEL at KOEO. I directly jumped the pump and it runs. I bench tested the main relay and it was bad so I replaced that. The ground that runs to the thermostat housing is not connected. Is this ground crucial to fuel pump operation? Is this the ground for the ECU? Other than this any ideas. All fuses are ok. I'm going to do an in depth diag tomorrow but I just wanted to see if anyone had encountered a similar problem and found a solution for it. Thanks guys!
     
  2. UNDR8D

    UNDR8D ...has a job!

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    Well, it was most definitely the ground on the thermostat housing. I got it hooked up and the CEL comes on and the fuel pump runs.
     
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