My 2000 Insight seemed to be running well until the 12v battery failed. I happened to read the fault codes (P1644, P1542, P1441) when I was attempting to recharge the battery. After I replaced the battery, when I went to start the engine, it seemed to start normally via the IMA battery, but it only ran for about 3 sec and shutdown; it then restarted by itself and ran again for about 3 sec. It did this again, and after it shutdown it stayed off until I tried again with the key and did the same cycle. I then read the fault codes and found that there weren’t any. Nada. Does anyone know what is going on and what has failed?