I was driving down a busy road today going about 40 MPH when my car completely shut off. I had to pull it into the side street and have it towed. I'm not sure what the problem is! For the past week it's been stalling at idle no matter what gear the car is in. It's a 1991 Firebird 3.1 V-6 with 169,000 miles. It has a new exhaust system, ignition system, fuel filter and thats about it mechanically. Anyone have any ideas? Thanks, Joe E.