New fox owner, idle issues need some advice

hey there, new to the site, have been reading things on here for awhile but this is my first time posting.
So here it is and im sorry if this has been asked 100 times. A few months back I bought a 93 lx Efi, and I got it home to realize it had some idle issues. It wouldn't stay running at all, rpms would drop low and it would die. So first thing I untagged the MAF, ran better. So got a new one idles much better but still not right. Did some research and thought maybe the IAC. So I got a new one and it worked abit better. So now here is where I'm racking my brain. I go out to start it and it just turns over and over. Finally when it does crank it drops to about 500 rpm and dies. After doing this two or three times I can rev it up to about 1k rpm and let off and it stays and idles perfect from there out. Any ideas on what's causing this? Any help would be greatly appreciated!

Thank you guys working on that now. Also not sure if you can help with this, I just got my car back today got the AOD rebuilt. I know should have went with a C4 but the rebuild was cheaper right now with the craziness in the world. So before I got it rebuilt I would have to let off the gas just alitte bit for it to shift to second. But the 3rd gear was burnt up. So now the new tranny is in just dove it and it does the same thing. I can floor it hit about 5k rpm and have to lift alittle then it shifts to second. Is this normal for the AOD. Or is mine just junk? It runs great and shifts all the gears good but. It won't shift from 1st to second without me letting off the gas.And thoughts would help . Thanks in advance !

Also its like it has no first gear power. It will hardly spin the tires. The tires are 255/60/15 the guy I got it from said it has 3.73s but there is no way. If the gears are stock would that tire size be to big to where it won't hardly spin the tires?

Ok so ran codes got koeo code 82 and 15.and my koer code was 12. I'm fixing to do the smog delete so that will take car of that. but I don't see why it doesn't have any low end power. It feels horribly slow, and there is no way it'll do a burnout. Not sure if this would make any codes come up or power loss but when I run my ac and everything my voltage drops horrible low, can a bad alt cause power loss like that?? I'm sure some of these questions sound stupid. But this is my first fox and jsut trying to figure it out

Ok so here is my car its mostly stock but has a few upgrades.
93 lx 5.0 efi automatic AOD with shift kit
Has full flowmaster exhaust, bbk headers
Msd distributor, cap and igniton coil.
Bbk cold air intake
New Maf
New iac

So here is the problem. I got the car with a bad tranny, had it rebuilt and now it shifts great. But it has no first gear power. I thought it was because the tranny was blown but now its freshly rebuilt and thats not the problem. When I floor It will hardly spin the tires. The tires are 255/60/15 the guy I got it from said it has 3.73s but there is no way. If the gears are stock would that tire size be to big to where it won't hardly spin the tires? Also from the tail pipes I smell strong gas so its running really rich, and I'm not sure why. Also when I have the AC and everyone on my volts drop really low. I think the alt may be bad. If it is can that cause that much low end power loss?

Ran the codes got koeo codes 82, 15
Koer codes 12, 91

Any thoughts or advice would be greatly appreciated!