Why does my 1997 s10 truck keep backfiring and dying out or almost dying out

check your petrol pump

when is the last time you had your ignition system cheked for spark plug gap or rotor wear or roto cap cracked

Could be several things, a vac leak, dirty throttle body, or faulty idle air control valve.
The computer controls idle speed by how much air enters the throttle body thru the valve.
Usually a vac leak would speed up the engine unless it is causing the rough idle.

the first thing I would start with is looking for vaccume leaks. be sure to check your EGR valve, then move to your MAP sensor. The next thing that it could be is a stopped up catylic converter

I have the same problem few days ago, and still didn't find any solution. Can any one please help?????3

Hi!!If you keep trying to start the car with an empty tank, air gets in the lines an make it hard to start. Look in the fuel rail for the service port valve, it looks like the one tires, it has a plastic or metal cap, unscrew it and place a rag under while you push the valve with a small screwdriver, do not push too hard or you'll damage the valve. once you push and release the valve, turn the key to the ON position for 5 secs. and repeat the procedure, if needed do it again until you get a solid stream of gas. It will be nice to have somebody turning the key while you do the bleeding. It always worked for me. As a last resort, use starter fluid on the intake, manually open the throttle and spray a little, place the air hose and crank it up. Stay away from the intake when engine is cranking, it may backfire.
Good Luck?? Don't forget to rate this post!!

Idle control valve . You have either clean it or better yet replace it.

IS YOUR SECURITY LIGHT ON,ON THE LEFT SIDE OF YOUR DASH??? IF SO,YOU'LL HAVE TO RESET YOUR SECURITY/IGNITION TO RUN PROPERLY.

Could be heat shield for cadalitec converter, or inside converter has broken loose, or a hainger for your exhaust has broken.

check timing with timing light , sounds like its out of time , and make sure that the timing marks are not off by one tooth