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We are privately owned, with access to a professional Diesel Mechanic, who can provide additional support for Dodge Ram Cummins Diesel vehicles. Many detailed information is FREE and available to read. However, in order to interact directly with our Diesel Mechanic, Michael, by phone, via zoom, or as the web-based option, Subscription Plans are offered that will enable these and other features.  Go to the Subscription Page and Select a desired plan. At any time you wish to cancel the Subscription, click Subscription Page, select the 'Cancel' button, and it will be canceled. For your convenience, all subscriptions are on auto-renewal.

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Does anyone know whether it's ok to leave the factory connector on the alt (that goes to pcm) and just add the new wires to the alt terminals that will go to the external regulator? the reason I will leave the original wiring harness in place is because my pcm issues stop when the weather warms up and without it I don't have act or cruise control. Am I missing something? Don't want to go back to gas but this is a pain in my a**. 1993 D350

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You can leave the stock wiring to the alternator attached but the green wire will most likely require to be cut going back to the PCM. The blue wire is the +12V for the regulator but the green shouldn't have any other contact with other devices but the alternator and the live regulator.

http://articles.mopar1973man.com/general-cummins/34-engine-system/134-voltage-regulator-mod

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Welcome To Mopar1973Man.Com LLC

We are privately owned, with access to a professional Diesel Mechanic, who can provide additional support for Dodge Ram Cummins Diesel vehicles. Many detailed information is FREE and available to read. However, in order to interact directly with our Diesel Mechanic, Michael, by phone, via zoom, or as the web-based option, Subscription Plans are offered that will enable these and other features.  Go to the Subscription Page and Select a desired plan. At any time you wish to cancel the Subscription, click Subscription Page, select the 'Cancel' button, and it will be canceled. For your convenience, all subscriptions are on auto-renewal.