Vehicle sputtering and missing likes its going to die at stops

When was the last time it had a tune up? If you can't remember I would go ahead and change all your plugs to start.

The PO 316 is still misfires om first 1000 revolutions
so the shop did a poor job for you on resolveing the
cylinder misfires

Try a diffferent shop

Have to clean the MAF Sensor & replace upstream
oxygen sensors if over 100,000 miles

Need the correct oem spark spark plugs/any brand

No reason the gas filter should be clogged unless it was in
the car for 10 years

Fuel pressure should be checked

Need to check for cylinder misfires on a road test of 20
miles or more with professional software in Mode#06

Are you getting spark to the plugs?

hyundai elantra If you want to solve your problem, click on the link I attached

Sounds like it could possibly be a vaccume problem, the computer sees that the vaccume has a low pressure and thus fludding the engine, or visa versa, it's seeing too high of a pressure and cutting the fuel comsumption to a minumum enough to make the engine sputter and die.. Does this happen when the cars in Netural or Reverse or Park? Just Drive?

Go to www.hmaservice.com and register( Vehicle by VIN). Afterward, you have access to shop manuals, service bulletins, wiring diagrams, etc. about your vehicle.

best to put it on the diagnostics, it could be the auto chock that kicks in it just thinks the engine is cold,

The code says tps switch so replace the throttle position sensor.

my 2002 elantra gls sedan started blowing hot air and overheating and it turned out when i took it to the hyundai dealer it was my thermostat they replaced it and i was good to go.it happened at about 40,000 miles hope it works out for you

I had a similar problem.
At a cold start the rpm would come up normally then slowly drop then stall out. Car would stall at lights and stop signs. My mechanic after having for 3 days found a faulty cam sensor.