Yes mine is OBDII(computer on coolent bottle and OBDII plug in)

Wouln't it be easier to just get a TBI setup off of a salvage yard engine? Then you could could use your current computer and wiring.

TBI? You mean CPI right?

It probably would be easier, but why do things the easy way when you can have fun along the way(and learn alot about my truck)? Why spend more money on stuff I already have. PLUS Im not a big fan of the spider injectors. I also noticed last night one of the previous owners pulled 3 or 4 wires out the back of the fuse block. So out goes the old and in goes the slightly newer.

Both have the poppet nozzles fed through an injection spider. The 95 has the CPI motor with the single batch fired fuel injector and a very problem prone FPR while the 97 has the SCFI motor that has 6 individual, sequentially fired injectors feeding the poppet nozzles.

Having an OBD2 truck already should make swapping things over easier. I would start inspecting the connectors that go into the dash for differences.

thats for tomarrow.
Just got done switching the wiring harness that runs from front drivers fender all the way to the fuel pump.

Ok so I got a few ?'s
1. What is the circled thing in the first pic? It is behind the OBDII plug. Both the 95 and 97 have them but the 95 has 2 plug-ins while the 97 has 1.
2. What does the circled plug-in(in the other pix) control? The 97 has the plug in but the 95 doesnt. It is in the wiring harness with the fuel pump, air bag sencer, etc.
It looks like I am going to be able to use the 95's int. wiring harness. YAHHHH

The first pic looks like the RKE (remote keyless entry) module. Does it have a label on it?

That other plug... No clue without digging into it and I do not have my references with me at work. Doubt I will have any time this week to look into it either.

You really should get the actual service manuals for both of them to see what you can and cannot use.

No lable on it but it is a TRW part.

I have a chilton but it doesnt show good wiring diagrams(no year dif.)

TRW was the OEM for the RKE modules so that is very likely what it is.