well to start off I threw a engine code. went to get it checked and I was told the OBD2 port wasn't working to check the fuses. I checked all the fuses on the car and all of them were ok. I went to drive down the road due to having to go to work and if I went into neutral the RPM would fluctuate or just drop so low the car would die. Any suggestions??? Im kinda stumped on it.