SD> alternator (was charging problem)

[Dennis & Sherry]

Neil:
Is there a way to "fool" the ecu to avoid the cel?
Dennis
in Delhi, CA


Neil Emiro wrote:
> It would trigger a CEL using the GM alternator.  Sounds like it could be 
> either the power module or logic module, although I agree it sounds more 
> like a logic module problem.  Only way to easily check would be to swap in 
> another module, and try it.
>
>
> On 12 Apr 2008 at 14:52, Dennis & Sherry wrote:
>
> Would it be possible to use a "one wire" alternator to get around this 
> issue?
> The Ford or GM alternators are fairly low cost and 100 amp units would 
> be an upgrade for a lot of our MOPARs.
> Would this cause a check engine light or trigger a limp mode?
> Dennis
> in Delhi, CA.
>
>   
>>> -----Original Message-----
>>>
>>> Subject: SD> Charging Problem
>>>
>>> More Info on the problem. I sent this to Stefan but did not 
>>> repost to the list.
>>> Voltage Readings:
>>>  
>>> Car Off: 12.5 - 12.7 VDC
>>> Cold Start: 13.7 - 14.2 VDC
>>> After one or two minutes when fast idle drops it hangs around 
>>> 13.3 for 10 seconds or so then starts dropping.
>>> Turn on headlights and voltage drops way down to 11.5 ....
>>>  
>>> If I remember correctly the Power Module (PM) is handling the 
>>> request for charge. However, I think it is actually coming 
>>> from the Logic Module (LM) and the PM is serving as the 
>>> relaying handler.
>>> Can anyone confirm? Once upon a time someone had the LM pin 
>>> outs  posted. I used to have a disassembly and port map but 
>>> was all lost when my PC  crashed a few years back.
>>> Thanks,
>>> Mike
>>>       
>
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> Neil V. Emiro
>
>
>
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