[Gmecm] gm 92 riv prom chip

[kc]

Jay Vessels wrote:
> Hi there!
>
> kc wrote:
>>> can a 'reputable' GM deal reprogram a PROM easily? Is it something 
>>> you'd EXPECT they know what to do??
>>> Mine is probably shot in my 92 riv ;-(?
>>> what we talking cost if I bought a NEW prom, 3rd party v GM????
>
> What symptoms lead you to suspect the chip is bad?  I ask because it's 
> not a failure-prone part.
>
> The factory chips weren't officially able to be reprogrammed, though 
> sometimes GM did use parts that could be erased.  Dealers just 
> replaced the chip.  Newer GM cars have FLASH memory and those are 
> reprogrammed via the data port.
>
> The last chip I bought from GM was about $40.
>
> If the ECM's part number (i.e. 1227730, probably not the one you've 
> got but it's an example of what it will look like) is the same, then 
> just change the chip and you're fine.  GM used the same ECM for 
> different cars and options over the years, but as long as the part 
> number (a.k.a. service number) is the same, then you're fine.
>
> Jay Vessels
> 1982 Chevrolet S-10 Sport, 2.8V6 TBI
> 1984 Chevrolet S-10 Blazer Sport, 2.8V6 (TBI pending)
>
> _______________________________________________
> Gmecm mailing list
> Gmecm at diy-efi.org
> Subscribe: http://lists.diy-efi.org/mailman/listinfo/gmecm
> Main WWW page: http://www.diy-efi.org/gmecm
>
>
i have been told by others the eeprom is bad
digital dash works except the odometer]eter
it reads ERROR EVERYTHING ELSE runs/is fine
trip meter reset works fine. THE metric/english setting works fine as an ex.
I cannot inspect thus vehicle in PA w/no odometer reading!