Blixtin

I just finished buttoning up my swap yesterday and finally go to turn the key. I purchased it from a well known importer who said it was running and gave good compression numbers. It is an assumption that the engine is good
I used the Heavy Throttle and Speed Academy guides to complete the swap. As well as a ton of searching on this forum.

When I turn the key, all dash stuff seems to turn off although it show the battery light as a warning indicator.

The first few times i tried to start the car, it will start and idles roughly before dying 5 seconds later. This is without an intake and the MAF just sitting there plugged in. I unplugged the MAF hoping to go into limp mode idle but the car idled roughly for 5 seconds then died.

I quickly rigged up an intake out of a brand new pipe I had and connected the MAF and a filter. I tried to start the car 2x but both times it idles for 2 seconds then the RPMs go up fast and I shut down the car before it can redline.

Any idea what is going on?
Some swap details:

• 
• Have a zenki S14 engine running with a Kouki WS pro harness with a Kouki ECU ( NA 23710 80F00 ) and Kouki MAF (69F01)
  
• WS Pro harness has two grounds and they are attached to the intake manifold
• Thick yellow ground goes from battery tray to chassis Do I need a ground from engine to chassis?
  
• Vacuum line from intercooler cold pipe to wastegate actuator (no T)
• Vacuum line from intake manifold to FPR and plugged T
• Vacuum line from below throttle body to HKS BOV vacuum line

And what is this?


So, i think I need to:
+ check for boost leaks
+ use washers without plastic on them for the throttle body
+ double check my fuel lines to make sure I have them right

Any help or ideas would be really appreciated!