still not running. replaced the fuel filter, put in a spare computer and still it won't start. thinking it is the efi relay.
I looked while we were working on a friends truck. There is not a fuel pump relay under the hood. My friend is a mechanic and he said the EFI relay would not be the problem. I would check the other relay cluster inside the cab behind the glove box. There may be a fuel relay there. You can try swapping the efi relay but as far I know that only controls the injectors and such.
