Just recently bought the car so just havn't had the time to twke it to a mech. But the previous owner told that the car turns off while draving just about every 3 weeks,, it turns back on but it won't stay on for too long and the longer you live it off, the longer it will stay on,,sometimes it takes about a half of day, sometimes it won't turn on for a hall day, but when it does, it would be like nothing happended.,,,I put the computer on and it gave me 2 codes a catalytic converter, and a transmission code, the transmission shift and sonds perfect, I dont know anything about the converter.,, does any off this has anything to do with the car turning off on me?