MAPed Blue Top Swap, NOT staying running! Please Help?!

[jondee86]

Cold start injector only runs while cranking, so engine will fire and then
die quickly... after 2-3 seconds. Faster if you open the throttle

If the big square plug is disconnected, you can jumper 12 volts directly
from the battery to the injector common power supply. Sounds like you
already did that if the engine will idle for 30 seconds.

Now you need to check if you have low impedence or high impedence
injectors. From memory, I think high impedence are 12 Ohms and low
are like 2 or 3 Ohms. Low impedence injectors need an injector ballast
resistor installed to restrict injector current draw. Its a diecast metal box
about the size of an igniter, but with small cooling fins on the cover, and
less wires.

If you need one, but don't have it, the car will run poorly, or not at all

Cheers... jondee86