2004 Cavalier Just stop running

Had a 89 cavalier did that start then die it map sensor. Also check ground wires if the become too corroded they won't start sometimes just run weird

Any trouble codes stored in the computer ? Does it stop running at road speed, or at a stop, or both ?

need to check fuel pressure, not just listen for pump to run, also check reading on coolant temp sensor, but sounds like fuel pump /filter issue. just because you hear pump run doesnt mean its putting our right amount of pressure. also check for plugged catylic convertor

its possible but it usually takes quite a bump or jar to set that off.
it helps to remember that a vehicle need 3 things to start
spark
fuel
air
spark is easy to see if your getting. have an assistant watch
remove one spark plug wire from the plug and lay the wire next to a metal nut or bolt on the engine
then crank the engine, the assistant should see a bright spark coming from the wire

fuel is easy but it takes the correct tool. buy or rent a fuel pressure tester. attach it to the fuel rail (where your fuel injectors are attached to) and check the pressure with the car on and the car off but the key on run (your local auto parts store can help you with finding the standard fuel pressure)

air is very easy, check your air filter. though I have never seen an air filter so dirty a vehicle wouldnt start,

finally if all those check out. either take it to a shop or check the timing belt yourself.
if your timing belt goes your vehicle would stop immediately and it wont restart till its replaced

I would recommend getting a tune up first and see if that changes how it runs.Also change your fuel filter and air filter.If it doesn't change then it could be a vacuum hose that's off or broke.Also Buy some Techron fuel injector cleaner and dump it in your tank this will help clean your injectors.Since there is no mention of a check engine light being on then this should help.

It sounds like you have a bad fuel pump, a bad fuse to the fuel system, or the cut-off switch was tripped to the fuel pump. Check you owner's manual to check the cut-off switch reset. If this doesn't fix the problem and you have replaced the fuse to the fuel system then you will most likely have to replace the fuel pump. Start with the easiest solution first before replacing the fuel pump.

MOST LIKELY A FUEL PUMP.YOU NEED TO HAVE THE FUEL PRESSURE TESTED

DEFINITELY change the filter...It's only about ten times past its useful life. Then check fuel pump, pump relay and fuse. (doubt if you'll have to!!)

Here is link for the cost of the pump, Figure about 2 and a half to 3 hrs labor for this job. Average about $400.00 Good Luck.

http://shop.advanceautoparts.com/ProductList.aspx?parttype=52&ptset=A&searchfor=Fuel+Pump

you need to find the fuel pressure release around the fuel rail press the little tab when the car dies. If there is no fuel coming out from that point, your fuel pump is going.