anybody ever made leds for their fuel injectors?

im having a probem where injector #4 doesnt fire and #1 fires when it wants. fuel injectors are brand new, tested, they work fine. the computer has been tested, it works fine. that leaves the harness.. the harness was swapped.

so after seeing a honda ecu tester, and so how there were leds for fuel injectors and u could watch them fire, i got an idea.

what if i could attach leds to the wires coming out of the ecu for the injectors, well i did and when i start the car, all 4 light up but i dont see them bink like they did on the tester i saw..

any ideas to hook the 4 leds up to make sure the injectors are firing right??

 

Which wire are you connecting them too? I think it would have to be the red, yel, brown, blu ones from the ecu. Maybe you connected them to the constant power