Turbo 400 to 4l80e swap need help

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

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.

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

Buddrow

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

$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.

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

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?

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.

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?

The 6395/7427 are faster, way more things it does and I found it much easier to work with than the earlier. The bins, xdfs and adxs seem to be more complete and easier to work with. That is only my opinion so maybe someone else will jump in.

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Originally Posted by Antipoped

So I jumped online and ordered a 16147060 BAAX

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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.

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

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?

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Originally Posted by Antipoped

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

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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/

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.

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Originally Posted by Antipoped

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

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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

Hey Dean, good news looks like it's the stock memcal BAAX

Attachment 11980

I offer this as it is something to consider and think about.

The statement "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."
I understand you are saying this about taking a 91-93 4L80-E Transmission with a Bosch Force Motor (FM) and installing/replacing just the FM for a 94-2002 Holley Manufactured FM.

This is something I would not consider doing even if you have knowledge about the 4L80-E Hydraulics, history, controls systems, sofware, calibrations, and experience. To just update or replace the force motor may bring uncontrolled commanded ending line/clutch pressures. Take the time to look up a GM Hydraulics schematic (Within the Service Manual) on a 4L80-E from 1991-1993 AND then compare it to a 94-2003 in the area of the Force Motor 3 circuits. Compare each circuit and it's placement in the Valvebody cavity and what is does before you consider this move. Just something to consider.
In a nut shell the 1991-1993 4L80-E had a Bosch design Force Motor. The 1994-2003 used a Holley Manufactured FM and 2004 up used a Borg-Warner FM. The 91-93 "Package" should remain together. The Package is the TCM/PCM, FM, Valvebody, spacer Plate, Aux Valvebody and internal wiring harness. The 91-93 Bosch FM Required a cleaning cycle to keep sediment build up to a low level on the Bosch FM Armature to operate correctly. As the FM cycled, via the software within the PCM/TCM, the pressure rise/drop was absorbed via the Aux VB Compensation spring/valve.
The 3 FM Circuits (Bosch to Holley compare) are different in their placement within the VB Cavities so just swapping them you risk potential failures. If you use a 91-93 FM set up with a 94 up PCM/TCM the "Cleaning Cycle" will not take place risking the FM to stick with an outcome of low and/or high pres. There is not a manner in which you can "Turn Off" the cycle within the 91-93 PCM unless you are within the software realm.
You may do as you wish but to take such a risk is up to you. I know of very few who could correctly do a "Root Cause Diagnosis" on one of these failures correctly.

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Originally Posted by Antipoped

Attachment 11980

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I found my memcal number, it is; BAMS 5225 from what I found, your number is from a '93 GMC C2500HD 5.7 TBI & 4L80E
so, my offer of a copy of my stock bin still stands if you're interested.

Yeah that sounds good to me. You can give me your address and I'll send that Pcm your way. My email is antipoped@yahoo.Com Thanks again

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Originally Posted by Antipoped

Yeah that sounds good to me. You can give me your address and I'll send that Pcm your way. My email is antipoped@yahoo.Com Thanks again

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Re-read post 14, you need to purchase pieces from Moates, I mail you the programmed chip and you put it together.

I completely misunderstood. Thought you wanted to swap pcm's. So I read post #8 wrong and thought I had to start with a STOCK 7.4 pcm. I didn't see the word memcal in that post. So looking in the bcc database I downloaded, I see that BAMS memcal is a 7.4 P3 chassis (class A) with a 4.10 rear end. That would get me going, but wouldn't be totally correct. Mine is a G3 chassis class c (van chassis and front end with a motorhome on it) I went through all 109 pages of the bcc database I downloaded, and found all the matching memcal codes for my 0706 with a G3 7.4 4L80 7.37. Any chance you could burn me one of those codes, buy the adapters from from Moates, and I plugnplay? Here's a page on gearhead I found some bins that match for 0706. http://www.gearhead-efi.com/Fuel-Inj...Information-85

Here's the list of codes:
ASZF
ASZH
ASZL
ASZM
AWAY
AWAY
AWBA
AWBB
BAMU
BAMX

Does the rear end gears have anything to do at all with the pcm and the way it runs? Or am I wrong?

Rereading post 23 makes it sound like I want you to buy the adapters from Moates. I would be buying the adapters, and paying you for the chip.

And one of those AWAY files should be AWAW

And now that I look at it....the other AWAY file should be AWAX (stupid auto correct)

I have been following this thread and seen a few refs to plugnplay. Most of the time when you mod the type of things the guys do on this board is not plugnplay in the sense you drop in a chip and go driving. You might want to say what your exact expectations are.

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Originally Posted by Antipoped

I went through all 109 pages of the bcc database I downloaded, [/url]

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Can you post the a link to that database ?

Quote:

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Originally Posted by myburb

I have been following this thread and seen a few refs to plugnplay. Most of the time when you mod the type of things the guys do on this board is not plugnplay in the sense you drop in a chip and go driving. You might want to say what your exact expectations are.

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It looks like he has found the correct factory bin for his vehicle, I was only offering a known good cal for a 1992 7.4 / 4L80E on a chip for a 7060 pcm to get him running, from there I anticipated him doing fine tuning. If not, then he does need the exact bin for his exact build so he can "plug and play" (his words, not mine)