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Ecm delete now alt not charging

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Old 03-22-2022, 07:20 PM
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Ecm delete now alt not charging

Alternator not charging a brand new battery, I did an efi system swap to a fitech 4 barrel self tuning system and in return unplugged and removed and sold my Ecm, is my alternator bad? Or was it controlled by the Ecm? 1992 rs orig 305 swapped to 350 with fitech fuel system and optima red top battery. If it has to do with the Ecm instead of changing the alt, what are my options to get it right and charging again without the Ecm? Thanks in advance
Old 03-22-2022, 07:56 PM
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Re: Ecm delete now alt not charging

Was the fan relay wiring ripped out ?
Old 03-22-2022, 08:04 PM
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Re: Ecm delete now alt not charging

Originally Posted by Tuned Performance
Was the fan relay wiring ripped out ?
yes the wiring still exist but no Ecm and fan relay is gone because the new efi system controls the fan automatically
Old 03-22-2022, 08:27 PM
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Re: Ecm delete now alt not charging

Tan/brown wire exciter to alternator
Old 03-22-2022, 08:29 PM
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Re: Ecm delete now alt not charging

http://www.austinthirdgen.org/mkport...E_charging.jpg
Old 03-22-2022, 09:55 PM
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Re: Ecm delete now alt not charging

Originally Posted by Tuned Performance
so is there a way to fix it without the Ecm cause I don’t plan on putting it back nor do I have one.
can I just connect it back and it’s all good? Or is there a different way to go about it now
Old 03-22-2022, 11:50 PM
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Re: Ecm delete now alt not charging

Did you look at the schematic?
Old 03-23-2022, 09:15 AM
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Re: Ecm delete now alt not charging

Originally Posted by Tuned Performance
Did you look at the schematic?
I looked at the schematic but wouldn’t that mean I would need the Ecm back to control that relay? The schematic didn’t really help me, I’m mechanically gifted but wiring confuses me. If your trying to show me something please tell me what it is lol
otherwise. What should I do to fix this? The relay was cut out and capped off so I’m not sure what your trying to tell me to do here.
Old 03-23-2022, 09:17 AM
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Re: Ecm delete now alt not charging

Originally Posted by T.L.
Isn't the alternator function independent from the ECM? I know it is on my '83...
that’s what I was under the influence of. But apparently not
Old 03-23-2022, 10:59 AM
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Re: Ecm delete now alt not charging

Hook up the excite wire if still a cs alternator
Old 03-25-2022, 12:19 PM
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Re: Ecm delete now alt not charging

Originally Posted by Tuned Performance
Hook up the excite wire if still a cs alternator
turns out I removed the fuel pump relay not fan. So bad fuse and bad alt
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