Hi! I recently purchased a 1995 Saturn SW2 Automatic. After I have had the car on the highway for a while and then drive in local traffic it will stall when I come to a stop. I checked the codes by shorting out the pins on the connector and it just blinks 12 - no codes. If I drive the car locally only, it will not stall except on a rare occasion if I stomp on the brakes suddenly. My mechanic changed the air and fuel filters but it did not help. Also, I have never driven a Saturn before but it seems to me that the transmission shifts a little late both when shifting up and down. I don't know if that is related or not. Any ideas would be greatly appreciated. Thanks, Dave