Alright guys, I've found a lot of help here thus far, hoping the same can come of this.
I got this car for free, and it wasn't running when I got it, it had been sitting for a very long time. It's an 86 2.5l 4cyl with the given automatic transmission. (haven't looked anything up about the trans, I hate autos) So far, I've had to go through a few different things just to get it running as well as to get it running right. Started off with throwing a battery in it and turning the key, nothing happened, so I disconnected the starter cleaned it up and put it back on, started up with a little motivation (full throttle) It was idling at about 2500 non-stop so I checked and found a couple vacuum leaks, and fixed them. (bypassed cruise) looked closer to the engine bay only to find the A/C Compressor just chillin' wedged between the exhaust and firewall. I got the compressor out and checked to make sure everything related to it in the engine bay was dealt with. By the way, try to avoid 13 year old Freon..... it smells like death.
I hadn't changed the fluids yet, so I only ran it for about a minute and that was after checking the Oil and tranny dipsticks to make sure fluids existed.
Shortly after I got it running, a tinging in the top end formed, and I couldn't determine what it was, and I was checking all around the valve cover and noticed it definitely needed a new gasket so I went and got myself a gasket ^^ This goes without any explanation for the time being, I'll post a picture shortly afterwards and scare the crap out of all of you.
Got the gasket replaced and fixed the tinging, then I didn't see any improvement., after less than 30 seconds, the tinging came back.
replaced all the fluids, which wasn't a tedious thing at all minus the -5 windchill with the ATF flush XD seeing as it's got 3 fluids, oil ATF and Coolant
Finally got the parts needed to completely do away with the tinging in the top end, and replaced them, (hint, there are 8) and when I fixed it, I found out that I was only running on 3.5 cyls before and it sounded a hell of a lot better after the fix.
the problem here is that after I got it running on 4 cyls like it should be, it's high idle is at about 2k, and when I let it sit to warm up fully and drop down to about 800-900 revs, I can't put it in gear without it dying.
That shows the current issue and now I'll list what all I have replaced.
Battery Cap Rotor Plugs Wires Alternator Coolant Temp Sensor TPS Water Pump A crap ton of Belts (Don't ask) 02 Sensor Deleted the Cat (no emissions tests) MAP sensor EGR Valve And a bunch of other things not related to the engine ie: brakes, lights, panels, speakers and such Oh, and I know I have my timing right, because that was the first thing we did after it was back on 4 cyls
Any help or advice on what might keep my car from stalling at red lights or making it so I can put it in gear once it's warmed up would be GREATLY appreciated.