Ok so full story is a bit long. We were going to change the head gasket but it wasn't that bad so we decided to use blue devil. We got everything hooked back up, timing chain never came off and the car won't start. It's throwing 4 codes, MAP sensor, Engine oil sensor, Bank 1 CAM sensor Accutaor open, and intake temp circuit high. Please give us some ideas because this is the first for us on this 2.4. My 2.0 has never done this.