The link seems to answer the question about years. Only the ECM for
the V-8 covers years 1993 through 1995. All models of the 4.0 engine
have an ECM unique to 1993.

Dick



On Fri, 25 Aug 2006 15:09:19 -0400, Mike Romain >
wrote:

>Here is a site that sells ECU's.
>
>http://www.trademotion.com/partlocat...?siteid=214295
>
>And drill down to:
>
>http://www.trademotion.com/partlocat...&catalo gid=1
>
>I don't know if that long link will be valid.
>
>They say the 12th digit of the VIN says it will be an early one if it is
>a '1' and a later model if it has a '5' or higher.
>
>Mike
>86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
>88 Cherokee 235 BFG AT's
>Canadian Off Road Trips Photos: Non members can still view!
>Jan/06 http://www.imagestation.com/album/pi...?id=2115147590
>(More Off Road album links at bottom of the view page)
>
>Casper wrote:
>>
>> Seems like my additional question didn't come thru, so here it is
>> again...
>>
>> In regards to the 19 GC Ltd PCM, are they interchangeable?
>> I have conflicting responses to this. On the one hand, I've been told
>> the 93 is interchangeable with the 94-95, but just needs to be
>> programmed. On the other hand I've been told the 93 computer is a
>> specific model and limited to that year. Can anyone shed some light?
>>
>> I'd love to resolve my jeep issue and right now all fingers are
>> poiting to a faulty replacement computer (pull from another 93?) but
>> the tech is having trouble locating another 93. I'm having some
>> trouble swallowing the difficulty in locating a replacement.
>>
>> All info greatly appreciated!
>> `Casper