ok... so I run 93 oct. but the gas station attendent put in 91. no big deal. Then yesterday a guy in a jeep backed up into my drivers side headlight and pushed the headlight into the engine bay. nothing major little bent hood and front quarter panel. but he's paying for it. Then this morning i pull up to a stop light and bam everything turns off.... not just a stall but everything... like the battery got disconnected or something. turned the key off and back on and started right up... did it again while driving down the road in third. checked the battery my boost gauge connector that is attached to the battery was a little loose I tightened it up and hasn't happened again yet, could this be the problem or is it something more serious? any help is appreciated! thanks.

 

check ground wire to the engine and the chassis make a good solid clean connection