Hey guys the other day while I was sitting in traffic my car idles started to change. The idle dropped down really low and was chuggin like a had a really aggressive cam shaft. Once the traffic started moving and I gave it some gas it took off really slow and kind off sounded like a helicopter. There was almost no power there. Im a little confused.

BTW the motor is completely stock.

Any Suggestions?

 

Sounds like you're running on 3 cylinders. Check your spark plugs. I bet one is doing nothing.