I need some mechanic help, i have a 98 honda accord ex 4 cylinder

and two weeks ago i had someone replace a piece on my car because my check engine light had come on. It was a valve that had something to do with the gas. The srs light was coming on and off and everyone said its just the airbags. Well driving home on the highway two days after getting that valve replaced my abs light came on and the car completely stalled out while driving 60 lost all power completely dead battery i mean not even my hazards were working. Had the car towed home thought a new battery nope so we put the old one back in the next day and she started made sure it wasnt the alternator by disconnecting part of the battery that was fine. It died in the drive way so we waited a week and everything was fine started the cr everyday but i didnt drive. Had someone follow me to admissions it passed tail pipe. Car ran fine. Got an oil change and tire rotation. And then today a week after admissions sitting at a red light the abs light came on and she died. Got to a parking lot waited ten minutes started. Tried to leave and died again. Jumped it. Ran 2 miles and stalled again. Side of the road jumped it waited another 15 minutes after it started and it died again after another 3 mmile, died three more times in a mile radius. The person following me said that black smoke came from my tail pipes before the car stalled out. Does anyone know what this might be.