AE86 16v Alternator issue

[Ribstar]

Hello everyone,

I have an Alternator issue and I hope your knowledge can help me.

I leave in Portugal (sorry in advance for my bad english) and I have an ae86 gts Kouki since a couple of years.
Last year, I changed the engine for another 4AGE in perfect condition (I replaced the water pump and belts at the same time) but after reconnecting all wires, I didn't have the charging light when the ignition was on.
I didn't have this problem before, I was thinking about a bad regulator so I replaced the brushes and regulator.
Now, I have the charging light on when ignition is on but it does not turn off when the engine is stared.
I replaced the alternator for a brand new one with specs : 12V 60A, no change my problem is still there.

My voltmeter indications :
Ignition off : Battery = 12,5V, B+ wire =12,5V, IG wire (ign kick) = 12,07V, S wire = 12,5V, L wire (charging light) = 12,5V
Ignition on : Battery = 12,5V, B+ wire =12,5V, IG wire (ign kick) = 12,07V, S wire = 12,5V, L wire (charging light) = 0V
Engine on : Battery = 12,4V, the voltage decreases, I didn't started without the plug on Alternator.

I go back to my garage this WE, any help/ advice/ recommendation / DIY will be really appreciated.

Thanks

[davew7]

There should be a high amperage fuseable link in the circuit. Check the connections and verify that the link is good. On the USA models the fuseable link is located near the battery. davew7

[jondee86]

Might be something useful in here.... viewtopic.php?f=9&t=11437

Cheers... jondee86

[Ribstar]

Hi everyone, I forgot this post.
I bring here the conclusion for anyone with the same
Problem… A harness wire broke at a junction near the fusebox

Thanks for your help guys !