Alright someone on this website has to know what Im missing. I have a race car, and recently decided to build a custom wire harness since I was having so many issues with the old one mainly due to heat cracking the wires. I went ahead and removed a lot of the stuff I dont need, but now Im afraid I may have removed something I actually did. The car will start like a champ then die after 1 second. The following is a list of what I have left.

Crank Sensor
Cam Sensor
TPS MDP
Air Temp (Speed Density)
Alternator
Knock Sensor
Water Temp
Fuel Pump Solenoid x2 (2 fuel pumps)
Coil 1&4
Coil 2&3
ISC
o2- AEM Wideband
Injectors 1-4
MAC 3 way adj air valve for boost
Battery
AEM V1

Now the following is everything I removed that Im thinking I maybe shouldn't have?

Turbo Wastegate Solenoid
Fuel Temp
Fuel Pressure Solenoid

 

Immobilizer?

 

AEM doesnt have an Immobilizer

 

Sorry. Just a thought in passing. I once made a key at Ace Hardware so I had to try it in the ignition. It did what you are experiencing.

 

Here is my current MFI setup