1uz blowing fuses??

[jeffw]

I've got a surf that has a 1uz put in it. I replace the altenator and ever since the charge light on the dash has never come on and the battery still hasn't Been charging. I had a quick play offroad on Sunday and it blew the ignition fuse and now blows them as soon as the key is turned. Any ideas as to what would cause this

[Sadam_Husain]

yep a pretty good guess you've wired it wrong what did the replacement alt come off?

[Jerry]

if its a 1uz alternator there are 2 different types i think (round and oval plug)

[jeffw]

the old altenator was off a v6 windom, the new altenator was also off a v6 windom but had a slightly different number and had a round instead of oval plug. was told they would be fine to swap the ends over but im not sure

[Sadam_Husain]

were you able to ID the pins or did you just guess the pinouts when you swapped the plugs over?

[jeremy]

These might be helpfull...

92 LS400 charging


93 ES300 (windom) charging

[jeffw]

I used the plug and associated parts off the original altenator and swapped them onto the new one. It all looked the same so I thought it would be fine

[Sadam_Husain]

so did you use a wiring schematic or just guess do the 2 alts look anything like the pinouts in those schematics above, when you say they both looked the same were they the same colout wires?

[Jerry]

they have slightly different internals .... which type do you need ... I have a spare one here i think

You may have blown a regulator or a main engine fuse as well

[jeffw]

Never been able to understand those wiring diagram things, they just confuse me to much.