Delco Ignition upgrade questions. - Page 2 - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


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Old 11-11-2005, 06:13 PM   #11
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The only difference I seen between the 2 ICMs that I have is that the one from the GA is IDENTICAL for the plug in, where as the 3800 ICM has an extra pin that is used. If I remember correctly it is only for a ground. But without any modification, both styles will plug in and work fine.
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Old 11-12-2005, 11:28 AM   #12
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Yeah I had a post on that extra pin when I did mine. It meant nothing to the operation of the car.
Click the link:
http://www.bonnevilleclub.com/forum/...153&highlight=
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Old 11-14-2005, 11:19 AM   #13
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I've been checking the yards for a 3800 Delco ICM. Cannot find em as they go fast. One thing I hate about the yards, is they tell me the 3800 delco ignition won't work in my 91'* magnavox. This is silly of course, abut they make it sound as if they don't want to sell me the system.

I'm gonna check the dealer, and see what they cost, brand new. If I cannot get one for a reasonable price, guess I am stuck with my magnavox.
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Old 11-14-2005, 01:04 PM   #14
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Quote:
Originally Posted by theJMFC
Quote:
Originally Posted by sse1990
ACTUALLY, I got my bracket from a 3.3L GA, along with the ICM and coils ( since it was sold as one unit). ... It bolts up and plugs in just fine, that is what is on my car right now.
Huh, that'* good to know. So the old 3300 units should work too. Darn it, now I have to modify my writeup.
Not totally right, which is why it has never been listed to avoid the confusion... I forget if it is 92 or 93, but in one of those years they went to the 3800 style ICM, as I think they went to a dual ring crank sensor....

I can research this further if needed....

AC Delco would also be a huge help in this area

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Old 11-14-2005, 11:36 PM   #15
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I am pretty sure it is 93, since I think that is the year that is written on the parts ( in a paint pen). So to be on the safe side, look for at least 93. Not sure if they changed it anytime after that.
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