My engine stalls and has a rough idle

"I started the car, it ran rough at idle."................

Hate to say it but it sounds like your timing is off a notch. I would start there, it should idle smooth, rough idle indicates timing, all other things equal. I would also check to see if you haven't pinched a wire somewhere in the system, recheck spark plug wires, check for vacuum leaks, verify the PCV is working properly, and check the air intake ports for leaks.

Automatic transmission ??
Check engine lamp illuminated ??
Cold engine idle speed ??
Warm engine idle speed ??
IAC (Idle air control) system operation ??

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start at the beginning fuel pump pressure at the pressure regulator then look for ignition problems , check mass air flow sensor if equiped

why ignore the CEL??????
you cross over the spark wires. lost firing order.
its not PVC but is due.
sure, lost spark, lost spark time, crossed wire.
if spark is good try test fuel
clean the EGR, if it sticks open car will never idle fast.
and will stall.
clean the ISC do the ECU can in fact now control idle.

you are are on track, most here are not.
you did a tune up, that is good , and is first.
bad fuel, car parked for year, dead?
now the 1 question, (after it runs)
can your happy right off save the stall
only this counts..... 1st....

check firing order now that wires are scrambled.
then check for spark on all 4 cyl spark wire ends.
then if spark is good,
and compression, good, 150 not 80psi
you do know this is and inteference engine right? and if not
fresh timing belt the engine will grenade. for sure.
dont listen to dorks telling you, mine didnt, they are idiots.
if you like Russian roulette ? and $3000 new motors are joy?
then skip the belt.

that finishes off a 60k turn up, spark , filters and da belt.
then spark timing.
then fueling.

all the fuel in the world is useless on a dead motor or dead spark'.

fueling is last.
if motor and spark are good, then yes, fueling
try test fuel (spary)
if that works for duration of spray
then check fuel pressure
that be next.
and more... ask

engine check light means fault codes to be read are stored in ecu

fuel pump delivery
timing
idle control sensor
air filter /maf ?

got spark if it starts up again after stopping?

last year, OBD1 car (dumbb ECU)
no scan tools for it
if you run on the road with that hack , and wreck
expect a nice fire. fuel fire.
if you used a voltmeter and say 12vdc there, all hotwiring stuff
need not be done. (
it stalled (misfire)
and then would not what? start but cranks ok?
4wd?
3sp ,4sp auto or 5speed stick
16v engine or 8v, both are G16s but EFI radially different.
16v is MPI with 4 injectors, 8v is 1 injector TBI
try a new
cap,.rotor spark wires and spark plugs yet?
cant burn fuel with bad spark
i guess the cam bent did not slip as it run ok later, but is 60,000 mile belt. and will slip ignored.

next time it stalls
check headlamps they work, and all electric
then see if CEL glows key on, i must or ECU lost power
it has 3 fuse that can rust, IG coil, FI, and DOME.
the CEL must glow, is first checks.

sounds like the timing is one(maybe two) teeth out of time on the timing belt. the computer is trying to advance or ****** the timing to compensate for the misaligned camshaft spockets.

Dirty or disconnected IAC (Idle air control) valve, dirty mass air meter (Maf) or being slightly out of time can all cause idle/stall issues.

Pull the plugs. Sounds like you have a bad plug or a bad plug wire. Even an engine that misses will run well at high speeds but if it's missing at idle you might have a little oil on one of the plugs. I had a 91 tercel, ran great but leaked a lot of oil which would in turn foul the spark plugs. I'm sure you either have a bad wire or plug. Wouldn't mess with the idle, not sure what state you're in but it could impact emissions testing. Best of luck m'friend!
Greg

you check for miss how is compression