97 nissan pickup, KA24 4 cyl, Manual 4x4
so I drove my truck to a friends house, stopped at a gas station on the way back. turned off the truck at the pump and it dieseled for about 10 seconds and wont start. will crank fine but doesn't even attempt to fire up or even sputter. when you turned the key there was no check engine light that would normally come on to tell you that it is functioning. Had it towed home.
checked this morning and the engine control fuse was blown. replaced it and now I sometimes get a check engine light when the key is on accessory and sometimes not.
when I dont its the same as before, cranks with no attempt to start. when it comes on then I hear a clicking on the right side of the motor compartment and it cranks with no attempt to start and the check engine light blinks rapidly.
there are some relays on that side where the clicking is, fuel pump relay for sure. Fuse hasnt blown again yet, but can a bad relay feed back into and blow the fuse? also can the fuel pump relay affect the power that gets to the ECU?
speculation aside, what would be the prefered diagnosis method for this. I assumed that no check engine light was a sign of a power issue to the ECU, and the fuse supports that. what connections/relays/fuses are there that can rob an ECU of its power? I'll also check the grounds on the ECU.
Any other help or ideas are appreciated