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External voltage regulator

560 Views 1 Reply 2 Participants Last post by  CowboyCummins01
Had the alternator tested and it passed. Seems like it’s the voltage regulator I don’t want to replace the PCM. Does anyone have a good video on how I should wire up the external voltage regulator.
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Dont go throwing the parts cannon just yet. What are your symptoms, whats going on? did you have multiple shops test the alternator. ive had alternators pass 2 tests, and fail the 3rd. Have you had the PCM tested for output signal. How are your grounds? Cable connections? Battery conditions?
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