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Registered:
August 2002
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Battery continues to run flat! - bad alternator wiring?
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Mon, 15 September 2003 12:08
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After the conversion the battery has run flat twice now.
Im pretty sure it has something to do with the alternator connections and them perhaps being a little mixed up?
Its for a 2jzge and the 3 pin plug is a little different to other plugs on a conventional altenator.
Much appreciated if anyone can help!
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Location:
Brisbane
Registered:
May 2002
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Re: Battery continues to run flat! - bad alternator wiring?
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Mon, 15 September 2003 23:30
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I didn't make any changes whatsoever to my alternator wiring after the conversion - the MA61 alternator wiring plugged right into the 2JZ alternator and everything worked perfectly! What did you change?
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Registered:
August 2002
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Re: Battery continues to run flat! - bad alternator wiring?
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Mon, 15 September 2003 23:33
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um i didnt change anything....someone else wired it up, but the charge light isnt coming on in the dash either and the fuse is good, and the light is fine.
Do you happen to know which wires went where?
basically i know i have 2 out of 4 right
so the other two may be around the wrong way...or the charge light circuit has been killed somewhere.
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Location:
tas
Registered:
June 2002
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Location:
Sydney
Registered:
July 2002
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Re: Battery continues to run flat! - bad alternator wiring?
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Tue, 16 September 2003 01:09
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Is it running flat (while driving)? or is it going flat when you've parked the car?
Take it to a battery place and ask them to test out your battery. The one I go to - Globe batteries on Davies Rd - often test my battery and alternator etc. They can tell you straight away whats wrong (if its battery or alternator). When I buy any car or straight after my conversion I take it there to make sure I wouldn't get stranded at night on a lonely road ...
If your light doesn't come on and its less than 12 volts (what is the maximum voltage that the light comes on?) while running, then definately look at the plug. First look at the wire from the battery + to the alternator as 2 weekends ago I did an alternator change on Kylie's corona only to find when I put the thick wire on that it wasn't healthy, so I put another ring thingmy on it, soldered it up well and put it on. 14.4 volts now 
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I supported Toymods
Location:
I renounced punctuation
Registered:
May 2002
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Re: Battery continues to run flat! - bad alternator wiring?
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Tue, 16 September 2003 01:21
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Glen, you need to get the www.autoshop101.com wiring diagrams. Also obtain some MA61 wirind diagrams (any Toyota dealer should be able to provide these for you if you beg enough). You will need to trace out the wires that are plugged into your altenator and connect them as per the wiring diagram. Looking at the state of your loom, I would be very concerned that a wire (or 10) has been inadvertently chopped at some point.
Sorry we couldn't sus that out for you on Friday night - there's only so much that could be done in an evening!
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Registered:
August 2002
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Re: Battery continues to run flat! - bad alternator wiring?
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Tue, 16 September 2003 01:22
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After a close insepction and much 'multimetering' there are a few problems.
All the alternator wires are on the wrong way haha whoops.
and the wire to the check light isnt connected ha!
i shall do all this then report back with findings.
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Location:
Brisbane
Registered:
May 2002
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Re: Battery continues to run flat! - bad alternator wiring?
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Tue, 16 September 2003 01:24
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Like I said, the alternator wiring is 100% plug'n'play... why had it been fiddled with in the first place?
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Registered:
August 2002
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Re: Battery continues to run flat! - bad alternator wiring?
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Tue, 16 September 2003 01:26
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No worries Dave, it was an awesome effort by both you, Dave and Dave, i know you were tired and just trying to get me started so i dont blame you, i have traced everything using a bizillion print outs of diagrams and im pretty sure i have it sused.
I think the wire to the dash came undone when we lifted the fuse box. It had been previously cut and shrink wrapped....poorly.
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Registered:
August 2002
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Re: Battery continues to run flat! - bad alternator wiring?
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Tue, 16 September 2003 01:29
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Norbie - previously housed a 1J which had the plug butchered i guess?
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I supported Toymods
Location:
I renounced punctuation
Registered:
May 2002
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Re: Battery continues to run flat! - bad alternator wiring?
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Tue, 16 September 2003 01:30
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Yes we noticed! 
If I were you I would DEFINITELY wire in a fuel pump relay.
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Location:
Sydney
Registered:
July 2002
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Re: Battery continues to run flat! - bad alternator wiring?
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Tue, 16 September 2003 01:31
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| Norbie wrote on Tue, 16 September 2003 11:24 |
Like I said, the alternator wiring is 100% plug'n'play... why had it been fiddled with in the first place?
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Yeah I agree. Mine had to be extended to the other side of the bay, but even I could do that. My warning light works too (2 bloody alternator rebuilds, bloody power steering leak)
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I supported Toymods
Location:
Perth
Registered:
May 2002
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Re: Battery continues to run flat! - bad alternator wiring?
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Tue, 16 September 2003 01:32
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| gianttomato wrote on Tue, 16 September 2003 09:30 |
Yes we noticed!
If I were you I would DEFINITELY wire in a fuel pump relay.
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WTF? There is no fuel pump relay?
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Registered:
August 2002
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Re: Battery continues to run flat! - bad alternator wiring?
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Tue, 16 September 2003 01:35
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Um no there isnt 
How does one go about getting one installed?
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I supported Toymods
Location:
Perth
Registered:
May 2002
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Re: Battery continues to run flat! - bad alternator wiring?
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Tue, 16 September 2003 01:37
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Find out what is starting the fuel pump...then put it there 
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I supported Toymods
Location:
I renounced punctuation
Registered:
May 2002
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Re: Battery continues to run flat! - bad alternator wiring?
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Tue, 16 September 2003 01:39
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No fuel relay is OKish, but it affords no safety in case of frontal collision, engine stalling and a fire. Fuel continues to be pumped into the engine bay.... 
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Registered:
August 2002
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Re: Battery continues to run flat! - bad alternator wiring?
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Tue, 16 September 2003 05:59
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Well the charge light now comes on so fingers crossed i have worked it out, otherwise it will be a flat battery somewhere else
but now my dash clock has died...wtf???
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Location:
Melbourne
Registered:
May 2002
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Re: Battery continues to run flat! - bad alternator wiring?
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Tue, 16 September 2003 08:55
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Toyota have kept the wiring colours about the same sence about 1970...
Yellow with green tracer tends to be charge light
Black with yellow tracer tends to be ignition power
White thick wire gos to the battery (can be used for sense wire on modern ALT's)
and on modern ALT's there is a thick black wire for B+ or charge to battery
I have also had an alt short out internaly and draw 10 amps from the battery all the time but still turn the charge light off
Allan
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Registered:
August 2002
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Re: Battery continues to run flat! - bad alternator wiring?
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Tue, 16 September 2003 10:42
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Ta,
thats exactly as i have it now 
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