My car has been dying at low speeds. Usually when going slightly uphill and decelerating swiftly. The [!] light comes on and the car shuts off. To me it seems like an exhaust issue related to the blow off valve or a battery issue. I've tried the bov in every possible tightness and although it seems to make some difference it doesn't go away completely in any position. My other thought is the battery connectors are coming loose and it's losing the charge due to battery movement. My battery doesn't have one of those straps to hold it down at the moment. Any thoughts?