This video will go over modifying the 1994 stock TBI wiring harness in preparation for wiring up to a stand alone LS harness. The way I do in this video works well when re-using the factory LS harness with PCM mounted in the front drivers side area under the hood. You could use any other stand alone harness, just change where your wires come out to mate up to the LS harness. This video is specifically a 1994 4.3L 4L60E 2wd, and will be connecting to a 1999 5.3L LM7 4L60E. I do not go over the 5.3L wiring as I already have a 3 part YouTube series on that.
More info to go along with the video here: [ Ссылка ] scroll down some to see the TBI Specific Info.
The RED connector with two wires I left near the plugs that go under the dash IS for a high pressure switch on the A/C system, it goes to the HVAC controls to signal it to open the re circulation door.
