was tuning my car today and part of the engine harness had fallen down and rubbed on the alternator causing a short with 4 wires.
2 of the wires were for IACV
the other 2 were a solid black and a black with yellow stripe

I have since repaired the wires but am getting no power at the ecu.
with ignition on fuse 12 has power (ecu fuse) but 18 doesn't (backup ecu fuse)
I also checked the ground at the thermostat housing and it appears to have a good connection when tested with test light.

Iv also tested my main relay in a known running car and it works, as well as throw that cars main relay in my car...

with ignition on there is no fuel pump sound. I checked the fuel pump wires and there is no power going to them

I don't really know where to go from here.... Im really stumped, I just finished building my motor and I really want to get it tuned but now I have to deal with this first
all help will be greatly appreciated

 

the wires... black and black with a yellow stripe.. those are to a plug that you really need to make sure is plugged up in the right places... that is what sends fuel and fire mixture.. run up those 2 wires and see what you find....

 

It ended up being the agc fuse or what ever that is. its the 15amp one right above the fuse puller.

 

i'm glad you figured it out.. gl on the tuning man...