overcharging fj40

Post by **pcman** » Sat Apr 16, 2005 6:14 pm

ok my fj40 is overcharging the battery ive replaced the voltage reg and its still doing it
ive fiddled with the wiring cleaned up the connectors on the alternator and still its overcharging im getting 14v at idle and 16 plus when its reving

would it be worthwile rewiring the voltage reg with some better (new) wire and a new lead from the alternator to the battery

any ideas ???

it was a reco alternator december 2003 so its not even 2 years old

Post by **pcman** » Sun Apr 17, 2005 5:20 pm

anyone at all

Post by **DAZZ** » Sun Apr 17, 2005 5:52 pm

Check the sence voltage. S terminal on alt, see if it has battery voltage.
If this is lower then battery voltage the alt will still charge even if the batt is fully charged. Check that the alt and engine has a good earth.

Post by **pcman** » Sun Apr 17, 2005 6:39 pm

excellent
went and checked and its reading between 11.2 at idle to 6.2v at 3000rpm ?? any ideas

is there a simple way to rewire it assuming that the factory wiring is dodgy ??

id rather not pay a auto elec if i dont have too

Post by **DAZZ** » Sun Apr 17, 2005 6:44 pm

May have to look at a circuit diagram. Can't remember if the sence circuit comes from the battery or through the ignition. Anyone else know???

Post by **pcman** » Sun Apr 17, 2005 6:51 pm

http://www.ih8mud.com/tech/72fj40-wire/71fj40_wire.gif

is that of any help cause i get lost lol

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overcharging fj40

overcharging fj40

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