Dylan h

Hey all, having a hard time trying to diagnose a problem with injectors not pulsing on start cranking ran one day, next day I unplugged the loom from the link and wired in can lambda, plugged in ecu and no startup have checked spark, fuel pressure, injectors , all test fine as engine tries to start but obviously not enough fuel, is it possible I have changed something by pulling the plug from ecu?? be honest I’m kinda over my link it drives me nuts