i tried the 'old school' birada of testing my alternator.
bukas makina, tanggal neg sa batt, bukas ilaw, dome light,
sounds. sa ilaw pa lang nag flicker na yung dome light. ganun din nung binuksan ko yung sounds ko. (no amps, so subs, just 2 tweeters from raon, the rest stock.)
ang finale nung binuksan ko yung aircon. yun na, namatay na makina.

kung mali ang technique ko ng pag test, paki correct pls.
could this be the reason kung bakit mababa ang idling ko?
or the other way around na this is caused of low idling?