bad ignition timing is correct. The timing gears may have slipped, and if the timing system uses a belt instead of a chain then the belt could have worn. The timing systen keeps the intake, exhaust and cyclinder pistons all in time so the engine will fire correctly. If the belt or chain slips even just a small amount, then the valves let gas in or out before or after the piston is at the point where the cylinder shout fire the spark plug. If the belt or chain slip far enough the engine will not fire at all.
Bad ignition timing or fuel getting to the exhaust.
A car can backfire and die if the spark plugs are bad. The car could also have a problem with the timing or the catalytic converter .
Slowing down
it doesn't or it shouldent'
catalytic converter?
If by "popping noise" you mean backfire, it could be crossed ignition wires, or some sort of misfire.
No! A car backfires because unburned fuel is getting to the muffler. The heat of the exhause system causes the fuel to combust, thus a backfire. A bad alternator will just not charge your car battery.
Could be in need of a tune-up.
A sparkplug misfiring.
Its either too much fuel coming from the carbeuator and causing it to backfire or it could be spark plugs wired wrong. try to be more specific on where backfire is coming from. either out of the carbeuator or the tailpipes.
bad compression
Possibly because its old!
Your car is running too rich.