diagnosing my s14 fuel issue

after the last video i have a new fuel issue. in this video i go over how to diagnose the system and replace a fuel pump in a s14 240sx as well as the "hot relay" mod. shop prep video to take the car to get the knock diagnosed 0:00 intro 0:24 rundown of video 2:32 remove fuel pump 8:38 2nd pump instal 10:47 testing pump 1 11:13 circuit diagnosis 12:46 testing pump 2 13:20 circuit diagnosis 2 16:29 checking wiring diagrams 19:06 fuel pump wiring layout 21:02 voltage testing 24:08 possible solution 24:41 final fuel pump test 25:21 test start after reinstall 27:01 outro