Re: [AMC-list] RAM ECU INSTALLED

[Matt Haas <mhaas@xxxxxxx>]

Newer stuff is for sure a lot of work to fix. Do you have a shop manual 
for the truck? If not, it would be a good investment for 
troubleshooting. You may also need a scan tool to be able to figure it 
out. A bad ECM is usually caused by something else shorting out and you 
have to check all of the circuits and fix anything that is wrong with 
them before replacing the ECM or you risk frying the replacement. I've 
done this once on an OBD I truck (late 80's GMC S-15) and it took a boat 
load of time to fix everything. Your Ram is OBD II and has a lot more 
circuits to check.

BTW, did you check all of the grounds to make sure they're clean and 
tight? Newer stuff is incredibly picky about ground issues.

Matt

On 7/26/2009 6:00 PM, jerijan@xxxxxxxxxxx spouted this sage advice:
> And...
> It won't Idle now.  Nor will it do what it wouldn't do before.  So, in
> addition to 'not accelerating, it won't idle.
> Back to the drawing board.
>
> I have had quite enough of this piece of...umm, work...  Nothing else I can
> think of, nor anyone else.  Makes me wonder if the 'new' ECU is beat.  
> It was
> supposed to be removed from a 'known good runner', but, alas, I've heard 
> such
> songs sung before.  All that I'm certain of is that if it came from a 
> 'known
> good runner', it wasn't directly; it came out, was 'stored' (likely), and
> then sold.
<snip>

--
mhaas@xxxxxxx
Cincinnati, OH
http://www.mattsoldcars.com
1967 Rambler American wagon
1968 Rambler American sedan
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