I have a 94 civic ex with a B20 swap. The car was running before and out of nowhere it doesnt want to stay on ..fuel pump works fine,relays were replaced,gets spark,changed ecu, but still no improvements....help please asap

 

Check if any of your grounds are loose...

 

Clogged injectors possibly?

By not wanting to stay on, do you mean to say that it dies out at idle? or does it randomly cutout under normal driving?

 

i have the same swap.. and at idle itd die out once in a while. but i just had to raise the idle..