[Glagulator]

There is no pin out like the one available for 96, but the attached file has the info you need for a 94.
I never made a C100 diagram for a 94, rarely deal with them.
Your job would be sooooo much easier if you had a 95 6.5 underhood harness.
96-up if you want OBD2.

 

[Glagulator]

Moderator could add the above PDF to the faqs under 1994 FSM, was left out for some reason.

 

[Glagulator]

What are the specs on your swap, trans, engine, DS4 or DB2?

 

[Glagulator]

So the 2000 is the project rig?
How do the 94 and 96 in post #1 figure in?

 

[Glagulator]

I think you posted to the wrong thread. Anyway...
That TCM is for a 1993 diesel with 4L80e and will only work on a 93 4L80e, unless you make changes to the trans.
The van harness is way different.
Was the van engine a turbo or non-turbo?

 

[Glagulator]

Looking good. Lots still to do. Do you have the 94 to get the hydroboost, pass. batt. tray, ect. from?
Also, keep in mind that it only takes a few drops of water to lock that engine up tight.
Do you plan on using the 94 bracket and pulley setup?

 

[Glagulator]

Are you only using the DB2 IP, no plans on the DS4 or an automatic transmission later?

 

[Glagulator]

Have you cut up the original 5.7 under hood harness?