Okay so here's the background info. My brother and I've wired up the sr20 into a 78 280z and it ran for a while until the ignition switch fusible link went out. My brother's friend saw it was fit to just use a regular wire instead of using another fusible link...
And so the problem started. Now, the fuel pump doesn't turn on when the switch is on. Also the engine doesn't crank when turned to start. I've made sure the relays and ignition switch function properly, so I'm at a dead end of ideas and troubleshooting methods.
Please give me any advice on how to troubleshoot it, what parts may have been damaged, and let me know if you need any other info that'll help. Thanks in advance.