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« on: April 11, 2022, 10:34:29 PM »
We need specifics before we can help.
You didn’t mention how old the battery is and if it’s been tested. You can’t properly diagnose a charge system issue with a partially charged or failing battery.
How do you know the regular system isn’t working properly?
What is the reason you suspect this?
Does your car have gauges or a light?
Is the wire from the alternator to the battery in good condition?
We need Specific voltages for the following if we are to help.
Actual battery voltage with the car not running.
Actual voltage with it at idle, 1,000 rpm, 1500 rpm at both the battery, alternator output, voltage regulator.
Are all the parts stock replacement or are there any non standard pieces?
Electrical may not be your thing, but stop throwing parts at it.