this is my new ride , 1979 k5 blazer needs some work . i bought it without the drivetrain .i also bought a 01 5.3-4l60e ,harnees . i didn't get the pcm . i did order one from wait 4 me hope it dosen't kick me in the a$$ . i currently have the engine - tranny in but need help with the harness . i want to convert it to stand alone . any advice will helpful . i installed a 91 suburban sending unit with the fuel pump out of the tahoe worked like a charm .here are some pics.

 

Simply tell Jesse at Wait4Me that you need the computer your getting flashed as a stand-alone installation, and your good to go. There will only be a few wires to hook up then. Many from your original 5.3 harness that you simply will not be hooking up to anything. You can simply cut them off, which I would wait till everything else is hooked up & running smoothly, before I did. Or, you can just tape them up into the harness. I like using the proper colored wire for the proper use, so I kept all the different colored wires & end connectors that I cut off, just in case I needed them in the future. Its all pretty straight forward, goes slow, just a test of your patience. Once you get to hear it fire up & sit there & idle nice, you will get your second wind of enthusiasm, lol. Good luck!

 

Very nice! I love those old blazers. I have a spread sheet that has all the pin outs called out to use on a stand alone if your interested. PM me your email addy.

 

Good luck with the build.... I love Blazers... haven't found anything better that can tow and take the top off in the summer!!! and goes through the mud without a problem!!! Keep us updated on the progress....