Dodge Caravan 1996 3.0 Automatic

I have problems accelerating with speed since I accelerate and starts coughing and throwing it but being in p o n works the engine well, could they help me?

The first empirical test that I do is put the A/C, the main lights and the speed. If the minimal march is extended and it is a spark plug or coil, it is best to scan to know what cylinders the fault is focused then review the spark plugs and coils of the cylinders that have the fault. For me that your coil has a leak, but check and then tell me.