The wife's Sportage stopped accelarating on her way to work. The car would not accelarate above 20-30 mph. A diagnostic computer indicated that the crank shaft positional sensor needed to be replaced. I have replaced the sensor, yet the car would not start. I even bought a OPD2 scanner, which indicates no trouble codes - states the car should be running - yet it won't turn over. Dealer states the car is out of warranty, so I need help repairing it. Any ideas or suggections would be appreciated.