what is a injector circuit/ open cylinder on 2000 Dodge Grand Caravan

my van start acting like it wants to cut off when you are waiting at the red light, and when you step on the gas it act like it wants to cut off, this happen on thursday.

Asked by for the 2000 Dodge Grand Caravan
sounds like you have an electrical malfunction of some type. It could be related to the fuel system (injectors) or the ignition system (plugs, coils, etc). Any "Check Engine" light? Probably will require a diagnosis to find the root cause.