89 chevy s10 misfires and sputters when i give it gas, dies when i stop. Sometimes it runs fine, but recently it's just been bad. When i rev the engine it can stabilize the idle, but usually die

Check your fuel relay.

Bad fuel pump, stopped up fuel filter, mabey? First check for vacume leaks.... may try unplugging the throttle position sensor. Plug it right back in... just check the connection.

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

There are a few thing that could cause this to happen, the first thing is that you need to make sure the check engine light is not on, if it is or not still have the computer scanned for any codes, the computer is always watching the operation of the engine and if there is a problem it will store a code and turn check engine light on to warn you of the problem, the code will come out as a set of letters and numbers and tell you were the problem is. it will not tell you whats wrong but just the component that is failing and then with some testing the problem can be found.

the sputtering you speak off could be due to a coil that is bad and causing engine to misfire, or even a vacuum leak or spark plug.
There are many auto part stores that will scan the computer for free and give you the codes, start by having the codes read and then write me back with the codes. Here is an example of a code, let say code po301 cyl 1 misfire , came up as one of the codes.

As you can read it tells you that cylinder # 1 is misfiring, then we would check the coil for that cylinder and the sprak plug first.

make sure to get the complete code, good day.

sounds like a possble bad egr valve stcking open or then clutch in the torque converter is staying on

dirty throttle body, check air filter.

ing. mod. and coil pack may be starting to go bad had same trouble with mine only a tune-up problem solved then came back be fore i put car on di machine found that coil pack was bad! when if you scange coil pack or ing. mod. replace all, if not will have problems again.

check all your spark plug cables, if moisture gets in to the boots it can cause a short near any metal surface,replace all your fuel filters and run some lucas oil fuel injector cleaner and stp octane booster.those worked on my 89.and the carb or throttle body might need to be cleaned with some spray cleaner,there are 2 different 1's /1 for carbs and 1 for throttle bodies.

bad idle air control valve or a misfire,could be alot need more info

Check the injectors. They are really bad about leaking on the 4.3's.