i read in this forum about the intelligent alternator, honda is using since at least 20 years.
so i found out, it cuts the voltage to 12,5v at some times while driving. thats the best plan for me. in fakt i think, this is enough most of the time. a honda mechanic told me, the batteries of these old civics lasted even longer, than usualy. an other good to have point.
the alternators have an aditional wire, called FR (fuel reduction i guess
) this is driven by the PGM ECU. look at the pic...
i guess this wire is conected to ground or not in case of 12,5v and 14v, but this is only a guess, nobody could told me so far. so if u have a civic or an alternator, maybe u can find out for us.
