I just took a 300 mile trip in my 97 legacy with 195k on it. I take good care of her with all regular scheduled maintenance as well as new plugs, air and fuel filters last summer. While fueling up for the return trip I kept pumping about a 1/2 gal. past when the pump shut off. I've heard this is a no-no but have never seen any ill effects... About a 1/2 mile from the station my car stalled out and would not start. It would turn over but seemed like it was not getting gas, even if I held the throttle wide open. It finally started again about an hour later, but 5 miles down the road stalled again. I'm wondering if over fueling could have built up enough pressure to fry the pump or relay or if its coincidence. I got a ride to the parts store and picked up a new pump and relay to test that theory but had it towed to the nearest shop because I forgot to throw my tools I'm the car and had nowhere to work on it. The mechanic hooked up a code scanner to pin point the problem but it shuts off when we turn the key. Because of this he thinks its the main relay or computer. Has anybody else had a problem with the scanner not reading on a Suby? His scanner works on other vehicles and functions when the ignition is in auxiliary. Because its his shop (and presumably because I'm a girl) he won't just let me replace the pump and relay to see if this fixes the problem (its where I was gonna start). What are the real dangers of over fueling? I'm afraid he is gonna scare up some costly problems... Advice? Suggestions?