[Gmecm] Caprice Prom/ECM help

[Bill Hamilton]

I wasn't referring to modifying the stock chip.I was referring to a conversion to the 27sf512 28 pin EEPROM from the 24 pin 2732 EPROM.There are 4 extra pins that need to be connected to pin 26 to allow the selection of the proper memory area of the chip so no stacking is needed. Just install the new chip in the original modified carrier.  I have been running them in my C3 ecms for a couple years now. Much faster to make changes and program then the old stuff. Removing the factory chip from the carrier is an art but once mastered you can remove them continuously with no harm to the chip. I used to buy the old 2732's and erase them and program them...and hope they worked. My old laptop with a parallel port died so I figured out how to just use the newer chip in place of the old ones without the use of an adapter. The chips are fairly cheap and they don't require any ultraviolet eraser. Even the ebay cheap programmers will work. But Moates supports the hobby so i like to use his stuff. But if you never plan to burn another chip or tune the vehicle, then it's better to just find someone to burn you a chip and hope they have a factory carrier for it or just hit a pick and pull and just grab a chip from an 8746 car with a 305/auto. Junkyards around me go from $10-30 for the complete ECM.
 > Date: Wed, 31 Aug 2011 06:56:50 -0500
> From: brian at exatorq.com
> To: scoutii76 at hotmail.com
> CC: playtoy_18 at yahoo.com; gmecm at diy-efi.org
> Subject: Re: [Gmecm] Caprice Prom/ECM help
> 
> > All you need is the $80 burn 2 and a 27sf512 chip for $5.Then burn the
> > lo3 file I sent you to the (modified) chip. If you don't want to
> > modified the chip itself then just buy the 28pin adapter. G3 IIRC
> > maybe the G1? I use them both so I can't remember.
> 
> Definitely don't recommend modifying the MEMCAL.  They're getting very
> hard to come by now, and more often than not removing the old PROM will
> damage one or more pins.  The Moates adapters are the way to go!
> 
>   --Brian
> 
> -- 
> Brian Koontz
> ExaTorq Tuning and Performance
> http://www.exatorq.com
> 214.531.DYNO(3966) (TX) / 888.873.8012 (outside TX) / 206.309.7491 (fax)
> 
 		 	   		  
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