Multiple cylinder misfire

Hi, my name is Devin. I am an auto repair expert with the Car Genius team here at RepairPal. I'm sorry to hear you're having trouble with your Ram 1500. Since you've replaced the MAP and crankshaft sensors, fixed the vacuum leak, and swapped out the ignition coils and spark plugs, the issue could still be related to fuel delivery or air/fuel mixture. The unburned fuel smell points to a potential problem with the fuel injectors, such as one or more stuck open, causing too much fuel to enter the combustion chamber. It could also be an issue with the fuel pressure regulator or the mass airflow (MAF) sensor. Additionally, check the wiring and connectors to the injectors and sensors for any damage or corrosion. If the misfire persists after checking these components, it may be best to consult a trusted repair shop for diagnostic testing. If you need more advice, have any other questions about your vehicle, or would like to get connected to a RepairPal Certified shop near you, we have you covered. Give us a call at 877-913-1554, and we will happily help you out!