I have a 2000 Chevy 1500 with a 4.3 v6. My bar that runs from the fender to the radiator support fell of and bridged my battery and fried my engine harness and two pins going into my computer. Me and a buddy went to a salvage yard and pulled one off another v6 for 75 bucks. It was a 4.3 v6 that we pulled it from same body style and everything but when we started to put the good harness on we realized that the plugs to the computer are different. So we are guessing the harness we got it from a 99 maybe???

The harness that got fried has 4 blue black red and white going into the computer:


This is the harness we bought (the good harness) it only has 2 a blue and a red:



My question is can we use the good harness and just get a computer with 2 plugs that matches it? Or will I need to buy a new harness and computer that have 4 plugs?

 

nope to your question, the second ( new ) harness looks to be from a v8.


string that new harness out and take a pic from it? im picking up a 99 s10 tomorrow, ill check the harness on it, if its what you need ill sell it to you if youre interested

 

Is there any reason why your not fixing your harness?

 

I'll take pics of the harness, it fried 2 pins on the ecu and some of the wires running to the fuse box. The motor we pulled it from is a v6 I'm positive. How much you want for the v6 harness and ecu?

 

 

let me make sure its the one you need, then we'll discuss cost and shipping

 

Alright sounds good.

 

Gm didn't start to use that red and blue style connector and computer in the S10 platform and the Full size trucks with a V6 untill 2001. I could be wrong as there was a break in production on 2000 Silverado models. So unless it came from something else like a Van of similar years. Then it came from a 01-02 S10/Blazer platform or Truck with V6

That is the same style/color connector they used in a 99-02 V8 Silverado. The 1 MB PCM In 2003 switched colors to blue and green

I would recommend that you get the correct harness for your application. I am not 100% sure what else changed as far as sensors and so on so I would not know what else would have to be changed to make it work.

It could be possible that Gm used different computers in 96-97 versus a 98-00 model even with the body style change, so make sure you get the correct harness and computer for your application.

 

I should clarify the info I posted above is related to the V6 and the computer/ harness used for that application.

If you get a different computer for your vehicle, it may be need to have VATS removed if it does not start.

 

Yeah it came out of a full size with a v6 I guessing it was an 01 then. That sucks