I recently got my 87 z31 turbo started and running albeit it need starter fluid to start than it will be fine, I noticed none of my gauges were working except oil pressure. I believe I have already switched the ignition relay around (which I will attempt again cause I'm not sure if I actually did) but to no avail, or that's why only one works. Any good processes of elimination for this? I know I should be following wired I just wanna make sure I'm going the right direction.