Info "loss" on early computer controlled carb vehicles.

From: jpero_at_sympatico.ca <(jpero_at_sympatico.ca)>
Date: Tue May 18 16:52:09 2004

Fixing on my 1987 caravan carb 2.2L and found very little info (1)
on google and even almost nothing from couple local chrysler dealers.

Been on and off digging for info on these Chrysler computer modules
for 2.2L 4 cyl carb engines that was used on many vehicles from 1981
to mid 1987. After that, 2.2 and 2.5 got TBI. But there was eariler
2.2 with turbo that used computer but completely another topic for
another time and others has covered this in detail.

Goes like this:

What spark control computer (module) especially for van and truck
were set up by part number. Remember keep in mind far as I can
gather, K cars and most sedans etc got seperate computer modules
(Computer inside interior of vehicle and power module in the engine
bay.) Dakota did get 2.2 carb also along with older caravans of this
period.

What particular computer is used with what particular emissions
system (so far three types: Calif, Federal and Canadian, some didn't
get air pump for catylast converter, some either got non-feedback
carbs some got feedback carb (uses a O2 sensor). Which means more
different computers too.

And by year.

Etc.

Remember that computer & carb era in late 1980's is becoming of age
for "restorations" or saving that info before this completely
disappears into mists of time. My 'van 1987 which means is 17
years, soon 18 years which is really LONG time ago.

I see a parallel to your people's researches into classic computers
with very little info but yet for some reason are successful.

What's the trick to that efforts to dig the last 95% that I already
found on other 5%?

Typically would be found in the service manuals but this is not true
because I did have the manuals for my 'van, again little info.

Cheers,

Wizard

(1) Found many good info websites but the last 95% isn't there.
Received on Tue May 18 2004 - 16:52:09 BST