Hi!

I'm currently trying to swap a W vin 4.3 from a 95 blazer into my Toyota 4Runner. One of my friends gave me some diagrams about the engine, but the diagrams I got were only talking about the gray and red plug.. And they're not very easy to understand. I want to do a clean up in the wiring, removing all wire not related to the engine management.

The ECu has 5 plugs!!! What are the 3 other ones.. gray, black and another small one in the center of the ECM. What's the utility of this 3 other plugs??

Do somebody have diagrams about this truck? The Haynes manual I bought is too mush basic, with only wire number and colors, no mention about the plugs color identification..



95 Blazer LS, automatic with air, Np231 t-case.


Thanks a lot!

 

I go back outdoor and I took a picture of the tag of the ECM