Misty has intermittent imoberliser issues can open doors with the key fob but then can not start the car, reset key and she will start stop car and same issue again but some times she will start when I try the ignition a few times, also if I turn key to start car and hold there for may be 10 seconds she will fire up. Poor girl has been problematic all year so has not been on the road as much as I would like just lots of normal old car issues, will getting a replacement key solve the issue if so where do you recommend?