I have an 02 ranger 4.0 with approximately 200,000 miles. I'm having a dead miss at idle. Truck smells like it's dumping raw fuel out of the exhaust. Seems like it is idling low. I've replaced plugs, wires, coil, done compression test, cleaned throttle body, replaced fuel filter, cleaned k&n replacement air filter and nothing has helped at all. No vacuum leaks. I'm at a loss. Don't want to throw more money at it and keep the same problem. Any suggestions would be greatly appreciated