Dave can you tell me what pcm wires I HAVE to have to run this thing as a stand alone?
Dave can you tell me what pcm wires I HAVE to have to run this thing as a stand alone?
I don't have schematics for a V6, but the attached V8 2002 Vortec Schematics.zip will be nearly identical to the V6 less two injectors.
The PCM will run with Battery Positive, Battery Negative, and Ignition On / Start wiring working. I strongly recommend 10 Amp fuses for Battery + and Ignition On / Start wiring.
dave w
So I think I'm going to change what I'm going to run my Jeep engine on.
I went to the U pull it and found a 2004 Astro van with the 4.3L that had nothing missing from the wiring harness or sensors. I got the whole thing for $80. P59 and all.
Now I've got to cut down the harness and set up a tune to run it on. It's an auto trans tune and I'm going to need to seg swap to make it a manual trans.
I lucked out with it being OS 12587603 and I found a manual bin on line. So I seg swapped it to a manual trans.
Dave if you get a min take a look at it for me. This is the first time I've done anything like this.
A torque converted with fluid will load the engine differently than a flywheel and clutch on deceleration.
I've experienced better results using an original manual transmission OS with a Manual Trans. The Deceleration Fuel Cutoff (DFCO) can be problematic when segment swapping a manual trans into an automatic OS.
When I flash a 5.3 liter for manual trans (5.3's were not mated to manual trans from the factory), I'll start with the a 4.8 Manual OS and hand pick the 5.3 Engine Parameters I will swap (Fuel / Air / Spark). Using a complete 5.3 engine segment swap into a 4.8 manual OS can adversely affect DFCO.
Knowing you have an Inline 6 vs. the 4.3 V6, it's anybody's GUESS what DFCO will actually look like. At this point in time, there are other "Things" to work on. The trans segment swap posted above is a good "best guess" or starter .bin file. Keep the forward progress going, tweak DFCO some other day.
dave w
Last edited by dave w; 10-07-2021 at 12:20 AM.
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