I have a 2005 RL and after driving it around for a while and getting it up to normal operating temp and I sit for 2 mins at idle at a light or the drive thru, the car shuts off. This has happened for about 5 months and I've tried figuring it out for a while now but can't seem to nail it. When I continue driving it and going down the road it seems fine. But when that needle reaches the middle it stutters and shuts off until I drive off. Is the car trying to protect it:huh:self or what?