ok, so I've read a few threads but really with no luck, had a check charging system come on intermittently when driving past 40mph, car was charging at 12.5 and down to 11.5 when revved to 2k
replaced the alternator and now car is running rough (I assume ecm needs to relearn since car sat for a while disconnected) anywho after replacing alternator car still has check charging system light stays on 100% of the time
Kind of at a loss of words and dont know what to check next. battery is abt 1.5 years old, had a bad battery on it before but never caused poor charging issues.
Ideas to check next before I dump 330 dollars on a new battery? (car audio battery) could I have had the luck of buying a bad alternator?