who can help me with a wiring issue,

just finished the swap and the car was running great,.i shut it off and went to get some food. came back start it up and it shut back off when it lost fuel pressure. now this is what i got going on. turn the car on and i get nothing. no fuel pump prime, i check the fuses and everything checks out ok. i hard wired the fuel pump and it primes. i check the injector and no pulse what so ever. then later the check engine light disappears, normally is there for a few seconds and then goes away but it wount even come on now.
the strangest thing is when i connected my laptop to my ecu, kpro tells me that it is online but no ignition.

ive spent 3 hours in the garage trying to figure this out, wtf am i missing
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no power to ECU and Main Relay is usually a ground problem for A2 and A4 - normally connects to bolt on thermostat housing on D and B series engines

 

i ran a wire from the - battery to the ground wires on the motor and it didnt change anything.

 

you need to make sure that the ECU and Main Relay are grounded

 

fixed.

 

I am having the exact same issue, how did you fix it? I am so lost on my car.