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Author: Subject: Alternator without ecu control
John Bonnett

posted on 16/7/20 at 11:35 AM Reply With Quote
Alternator without ecu control

As many of you know I'm using a 1.6 Sigma engine for my project and am planning a DTA ecu. Normally the alternator is, I believe, on this engine controlled by the ecu. This won't be possible with the after market ecu. I've heard and would appreciate confirmation that the alternator can be wired in the normal way without going through the ecu using an ignition warning light and direct connection to the battery. If this is right can you tell me what wires are redundant and which one is the exciter.

Thank you

Joh

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starterman

posted on 16/7/20 at 01:28 PM Reply With Quote
Do we know the part number of the alternator John?

Cheers
Mike

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John Bonnett

posted on 16/7/20 at 03:29 PM Reply With Quote
I'll try to attach a couple of photos Mike. Thank you for your reply.




[Edited on 16/7/20 by John Bonnett]

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mangogrooveworkshop

posted on 16/7/20 at 04:23 PM Reply With Quote
Its not quite as straight forward as you think. I have a contact who mods these things to make them run or better use the twee dihatsu one.
its not a voltage but a signal that controls it

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starterman

posted on 16/7/20 at 06:24 PM Reply With Quote
John,

I will have a play around when I'm in work in the morning.

Cheers
Mike

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John Bonnett

posted on 16/7/20 at 06:59 PM Reply With Quote
quote:
Originally posted by starterman
John,

I will have a play around when I'm in work in the morning.

Cheers
Mike


That's really kind of you Mike. Thank you.

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Oddified

posted on 16/7/20 at 08:01 PM Reply With Quote
I ran into the same problem on the st220 engine/smart alternator. I ended up stripping the alternator down, removing the 'clever' control and adding in 3 diodes and a conventional reg so it works as a conventional alternator with ignition dash light.
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t3nay

posted on 28/7/20 at 09:44 PM Reply With Quote
Has anyone had any luck with this?

I have the same problem.

There must be a way to fool it into charging.

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starterman

posted on 31/7/20 at 04:42 PM Reply With Quote
Change the regulator. Drop in and have a chat if you want, I'm in Callington.

Cheers
Mike

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t3nay

posted on 1/8/20 at 10:32 AM Reply With Quote
Thanks Mike, sent u2u
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