Hey guys I’m brand new here and would love some help! So my Civic recently ran into a misfire. I replaced injectors after I did plugs and wires thinking it was something simple and even did the distributor because it looked and rough and broke in the process. After further inspection injector 4 is not getting any pulse. Using a stethoscope you can hear the other 3 click and when you jump one to number 4 it starts clicking showing its working and it’s firing, but at the wrong time obviously because it’s jumped, otherwise nothing. The dealership I work at mentioned getting the ecu tested since they checked all the wiring to the injectors and it’s getting the power it needs (but maybe not grounding properly?) so I sent it out to a guy who said that the ecu was perfectly fine and ran with no issues in another vehicle. I’m kind of confused as to what could be causing only one injector to have an issue like this. Any tips would be great! TIA