Car does not start until D4 comes on and off then fuel primes and everything's good for the day but sometimes just to get going I have to put the battery charger on it because the constant running of the fuel pump runs the battery down I replaced the igniter still no go what about the ECU? Should I get another one? Please help? Also the alternator will charge sometimes and when it gets hot it will not charge the battery light will come on for a few minutes then go off but the Alt. is still not charging why would that battery light go off if it's still not charging is that another sight that there could be ECU damage?