no injector signal KA24DE

[motoman399]

so i posted this in the ka section but no response. a friend has a pig nose s13 with an s14 ka24de. after 3 years he finally got it to run. it only ran for about 10 seconds then shuts off. and it takes a long time for it to start back up. when it runs it runs great. then just dies and i checked the injector wires and it has positive from both wires. im not sure where else to check. we used his ECU in a friends s13 and it worked fine. so any help is appreciated. thanks

PS he is about to take it to an electrical shop..... p**** lol