I have a 04 model, every couple times i try to start it, it acts like the key is not the right key, so it will start up run for a couple seconds then die, i have had 2 keys made and also replaced the sensor that goes around the key cylinder. not sure what else it can be, sometimes it starts right up no problems, then the next time it acts like its the wrong key, even if i try to start it and it dies, i can cycle the key on and off without taking it out and it will start, code shows that its a invalid key. any ideas would be great.