Slows and shakes when trying to accelerate, even in neutral. 2005 dodge caravan

What is your question?

I have a 2005 dodge caravan 4 cylinder. When I try to accelerate, it slows down and shakes. Even when I put it in neutral, the engine will hesitate and shake when pressing the gas. Check engine light is permanently on.

What makes this problem better or worse?

Worse when it's hot / summertime

How long has your 2005 Dodge Caravan had this problem?

1 year on and off