https://frsport.com/SR20DET-Swap-Eng...SR20_t_26.html
another SR20 swap guide
https://www.nicoclub.com/archives/s1...-s13-swap.html
Having your ECCS relay not wired up would prevent your car from starting.
Really though, just make a "I need help with my SR swap" thread and stop making separate threads for each symptom you're having. This is all related to your swap and the gremlins may be interrelated as well (Frankenstein wiring harness.) You lose fidelity when everything you've done up to that point troubleshooting gets lost in your new thread.
#/f/showthread.php?t=673773