Hi scotty, so just yesterday my car was driving fine when all of a sudden my battery light came on and my car felt like dying and then got a multiple misfires at the same time. I took it to AutoZone and had the check engine light check and I got a p0300 and p0622, on the way home I turned my high beams on along with the heater and stereo and my car died, I turn everything off and it started again but died 20 second later, and now it cranks but won't start, I tried jumping the car but it won't start. Can my bad alternator be affecting my car to not start? Is my bad alternator causing the p0622 and no start? Please help. Thank you in advance.