Swapping ECM's

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Jan 1, 2008 | 08:09 AM

GIT-R-DONE

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From: Western PA

Swapping ECM's

I have an external mounted voltage regulator, and found an ecm with it incorporated into the ecm. Would I have to do anything to the voltage regulator to make it work, or can it just be installed without problems?

Jan 1, 2008 | 06:40 PM

wannadiesel

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From: New Holland, PA

The '91.5 PCM is unique and will not interchange with the newer models. A '92 or '93 PCM will not work in your truck.

Jan 1, 2008 | 07:01 PM

Fred Swanson

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From: Waddell, AZ

Dave, if he had the 50pin harness to go with the PCM, that should work, yes/no?

Jan 2, 2008 | 06:34 PM

wannadiesel

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From: New Holland, PA

You'd have to swap in the crank sensor.

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