The 2000 Saturn SC2 engine will stall when it warms up and will restart up run rough and stall. It will not run until the engine cools down and then stall again after it warms up. Have replaced the PCV valve and fuel filter. Is this a fuel pump issue or some other related part?

SOURCE: 1998 Saturn SC2 has been frequently stalling out.

First remove the throttle body. Then locate the Idle Air Control Valve and the 2 TAMPER-PROOF TORX screws that attach it. Soak with WD-40 (or equivalent) and use the correct size TAMPER-PROOF TORX bit on your ratchet and remove the screws (make sure not to drop them--they are NOT magnetic). Mind the large O-ring that seals the IAC to the throttle body; don't damage it because you will need it for the new IAC* (* if you don't buy GM replacement parts). While you have the IAC out, spray the **** out of the throttle body and clean the throttle plate with carb spray, a rag, and a old toothbrush(I'm serious--EVERY GOOD MECHANIC HAS ONE). This will break up the carbon and gunk collected over the years and mileage. Once you have a nice, clean, DRY throttle body (*dry is important because carb spray will expand the O-ring on the IAC and it will split or break the seal--which causes poor idle*) lube the O-ring with some White-Lithium grease (spray some on your finger tip and apply) and firmly press the new IAC into place and reinstall the screws. Reinstall the throttlebody and reconnect the hoses and wires. Crank the vehicle and let idle for at least 10 minutes so that the computer can relearn the new IAC positioning. (this is because the old, faulty IAC was sending poor signal to the computer and the new one must be seen to take orders from the computer)
HOPE THIS DOES THE TRICK, SINCE YOU DID NOT ASK HOW TO DIAGNOSE THE PROBLEM.
Mr. Goodwrench

SOURCE: 2001 saturn sc2 gets code 341&340 camshaft sensor

if you have high resistance in secondary ign. system (plug wires, ign.coil) this will cause this code to set. make sure you are using a high quality spark plug wire set. not from autozone!!! and denso non platinum tipped spark plugs. also use a diaelectric grease on plug wires to keep moisture out.

SOURCE: 93 Saturn SL was running a little rough, would

sounds like you have some bad injectors. if your smelling fuel it sound like one of them are stuck open. that would cause it to run rough. i think the injectors are like 35 each i would put them in and run a fuel system cleaner and put a new fuel filter when you do all that.. if you do it yourself it should run you about 180 to 200. Its not that hard to do. If a shop was to do it it could cost up to 500

SOURCE: 2001 Saturn Sl2 wont run after warmed up

SOUNDS LIKE YOUR CATALYTIC CONVERTER IS DYING

SOURCE: 1993 1.9 saturn sc2 starting problems

Sounds like the the Bendix is bad in the starter, which pushes out the drive gear to engage the flywheel. You'll need to replace the Bendix or the starter. It's a bit tough to get to the starter, it is underneath the intake manifold.