Turbo 400 to 4l80e swap need help

[buddrow]

Another option would be to find a tcm from a Diesel truck/van with a 4L80E or an aftermarket standalone controller.

Buddrow

[Antipoped]

OK so I checked the wiring harnesses today and found that my stock harness (being an RV) has quite a bit more going on than the 93 box van harness I picked up yesterday. So I won't be using the 93 harness. It's not a total loss because now I have all the plugs I need for my 4l80e. So new plan....do they make a stock pcm for my application that I can splice the 4l80e plugs into. I currently have a 1228747 AUMZ (ecm with 2 black plugs) it ran a 7.4 with turbo 400 and 3.73 gears. My current setup is a 91 7.4 with a 93 4l80e and 3.73 gears. A tcm or stand alone controller is a good idea, but I would rather have a pcm with stock plugs where everything is working together

[myburb]

$OE will run your motor and 4l80e. As far as any extras your RV has I couldn't say. You would have to update the force motor in the trans but that isn't much of an issue. You still could use 7060 but it would be best to have one from a 7.4.

[Fast355]

I would not splice the PCM connections. You can unpin them from the connectors and move them to the new connectors.

[Antipoped]

Good idea Fast355 I won't be splicing, I'll be unpinning. Myburb sorry if any of this sounds dumb, but I'm completely new to pcm reprograming/burning chip related stuff. Is the 7060 I ordered able to be programmed to run a 7.4? Or do I have to have one that started out as a 7.4 pcm. I did a ton of research on programing last night, and the tools I need to get started seem pretty expensive. It's seems like it might be more cost effective if I were to get a pcm and pay someone to set it up for what I need. (Unless someone knows of a halfway affordable setup I could buy) also I didn't realize my force motor needed to be changed to a different one. Do you know which one I would need?

[myburb]

You only need to change the force motor if you go to a later $OE bin. The earlier 80e had a cleaning cycle that the newer doesn't and runs at a different frequency. The reason it is desireable to start with a 7.4 memcal is if you go into limp home it would more closely match your unit. There is probably other items I am not thinking of. As to the hardware to program and tune yourself I suppose it depends pricewise if you just want to one time get it going and go driving or if it will be kinda your hobby. I think most find that one is continually tweaking to make it just a little bit better.

[Antipoped]

Oh wow great info. I never thought about the limp mode being different. So you mentioned the 6395/7427 earlier. Since I'll be repinning my harness to fit the 7060 anyway.....how much more difficult will it be to do 1 of those , and what makes them so much better? Does it matter that it's a 93-94 pcm and I'm running a 91 with 93 tranny?