Engine Mechanical problem
1996 Chevy Corsica 6 cyl Front Wheel Drive Automatic 125000 miles
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when i try to start my car it has a hard time starting and after i start my car it has a hard time staying started till i get goin. when i turn my air on it seems to work better but when its not on and i stop at a stop light it likes to idle down alot and try to die. do you have any idea what it could be?

Also i just replaced all my spark plugs and plug wires