Turbo 400 to 4l80e swap need help

**Antipoped** · 07-18-2017

I am attempting to swap my turbo 400 to a 4l80e. It's a 1991 class c (van front end) chevy rv with a 7.4, turbo 400, and 3.73 rear end. It currently has a 1228747 AUMZ ecm. Research on this site has told me I need a 16147060 AWAW pcm for what I'm trying to do. I went to the junk yard today and got a complete wiring harness out of a 93 Chevy box van that had a 4l80e in it. Pcm was gone (of course) So I jumped online and ordered a 16147060 BAAX
This site shows that as a 5.7 4l80e pcm. This is where I'm out of my element, and I could use some help. I would like to turn the pcm I ordered into the one I need, and have no idea how to do that. I have access to a Tech 1, and Tech 2 diagnostic tools. (Don't know if that even matters) or do I need something completely different to reprogram the pcm? Any help would be appreciated thank you

**myburb** · 07-18-2017

Being as you are upgrading you might want to look into going to a 94/95 6395/7427. I have used the 7060 bamm and once I moved up I wouldn't switch back. If you went that route $OE would be the way to go.I do see that you have a 93 harness so that would have different plugs than the 6395/7427.

**buddrow** · 07-18-2017

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

Buddrow

**Antipoped** · 07-19-2017

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** · 07-19-2017

$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** · 07-19-2017

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

**dktool** · 07-19-2017

Originally Posted by Antipoped

So I jumped online and ordered a 16147060 BAAX

Does the one you purchased have a memcal in it ? All of the ones I have seen, new / remans come without the memcal. Even used ones on ebay are naked.

**Antipoped** · 07-19-2017

It's used but supposedly complete. I guess we'll see, it should arrive tomorrow.

**Antipoped** · 07-19-2017

So I found a 7060 nearby that came out of a 7.4 4l80e combo. Only problem is it was a 4wd vehicle. Will that matter? Would this be a good pcm to start with?

**dktool** · 07-20-2017

Originally Posted by Antipoped

It's used but supposedly complete. I guess we'll see, it should arrive tomorrow.

If it is a 7060 and has the memcal, I can offer you a burned chip with the stock $D8 bin from my 1992 7.4 / 4L80E P37 (P30) RV chassis for the cost of shipping.
That will get you running easily with the purchase of a G1 adapter and a zif socket from Moates.
From there, you can get into re-tuning if you want to with the addition of a Burn2, Cable 2, TunerPro RT and Flash N Burn software.

http://support.moates.net/93-tbi-trucks-4l80e-16147060/

**Antipoped** · 07-20-2017

Dean, that would be amazing! Just curious, does your 7060 have the stock memcal? If so what is it/was it? This site is great! I'm definitely intrigued about tuning now. I've been up and down that Moates site a bunch of times now. Lots of good tools and information.

**dktool** · 07-20-2017

Originally Posted by Antipoped

Just curious, does your 7060 have the stock memcal? If so what is it/was it?

Yes, I don't recall the letter designation off hand.
The memcal is an all in one bin chip, knock filter and limp home mode all soldered onto a single board, using the G1 adapter it maintains the connections of the knock filter and limp mode to the pcm but keeps the bin portion isolated, then you plug in your erasable chip into the open slots on the G1 via the zif socket to make it easy to remove.

To read a bin out of a memcal you need a HDR1 memcal header, this connects the memcal to the Burn2 to read and save the bin to your pc.

http://www.moates.net/hdr1-memcal-he....html?cPath=64