Re: Alternator and voltage regulator question?

From: Don Rey (radon220@gmail.com)
Date: Mon Mar 13 2006 - 20:35:59 EST


Okay, you forced me to finally dig out my old Outlook archives... my
VR mod pre-dates my Gmail account.

The instruction I was given on how to insert an older style VR in
place of the PCM VR was to wire the external VR in parallel with the
PCM. I didn't like the idea entirely. I kept the wire from the
alternator field output to the PCM input, but I snipped the PCM VR
output (the signal to the alternator - #14 wire on the 14-way PCM
connector). Then I just wired in the old style VR. Make sure it's
grounded! To prevent it from looking completely redneck, I bought a VR
harness (with the triangular plug) from NAPA for a few bucks. I did
this on my 89 Dakota... I imagine it's the same on 91-96 also, but
check your wiring diagrams for the PCM voltage regulator output. It's
really quite simple... and how much does a replacement PCM cost?

>From Sept. 2004 (basically what I just said... included for posterity I guess):

---
Okay, my fix worked. The truck is charging just like it should. Aaron
mentioned wiring the voltage regulator in parallel with the PCM, but I
was worried about the computer's incorrect output signal interfering
with the replacement VR signal. Basically I wired it in parallel to
begin with, except that before I finished, I clipped the #14 wire from
the PCM 14-way connector (the PCM VR output).
---

Don 89 Dakota Convertible 4x4 74 Dart Sport 340

On 3/13/06, Bill S. <kb7vkl@yahoo.com> wrote: > > That info is golden! Is the mod for this online somewhere? I'd like to > archive it in case I need it someday. > Thank You. > > > ______________________________________________ > 1994 Dak, V6, AT, AC, all stock for now > ______________________________________________

. . .------------------------------------------------------------------. | Make your plans NOW to attend the National DML Meet in Colorado! | | Date: July 15-23, 2006 - More info: http://meet.dakota-truck.net | `------------------------------------------------------------------'



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