kmjavenger

Basically I'm in way over my head. I just bought a completely gutted and drifted ragtag 91 s13 ka24de DOHC a month ago. It's got strange wiring, systems deleted, no exhaust, and it only will start and idle at around 1000rpm if the gas pedal is to the floor. When I let my foot off the gas it revs up to 3000 shortly and then immediately dies. Where do I go from here?

My first thoughts are vacuum leaks due to the deleted systems not being capped and maybe something wrong with the wiring of the fuel pump (I think it's been hardwired without a relay, but it's difficult to trace). What should my first course of action be to start diagnosing what is wrong with the car?

I'm 20 and extremely new to cars. I'm really just trying to learn. I probably should've started with something a little more complete, but I've always loved s13s and I couldn't pass this one up.