16197427 Stand alone 4L80E controller questions?

**vandyman** · 10-05-2020

PXL_20201008_173158226.jpgI picked up a Drac module and I will modify it with a set of dip switches.
I found a little time and removed the trans cover. Here are some pictures that were taking.

vandymanPXL_20201005_181911306.jpg PXL_20201005_181925351.jpg

**Racprops** · 05-12-2022

OK I may have a problem.

First question is what is the VSS pulse rate for the 4L60e ??

I was going to use my Vans original ECM 625 so I converted the US Gear Dual Range gear speedo drive to a 4l60 VSS.

So I am now hoping the VSS pulse from this conversion will work?

Rich

**Racprops** · 05-12-2022

Second question now after reading more is what year is my 4L80e??

I am knee deep in working out the conversion to a 4727 ECM and how to hook up my 4L80e, now it seems there is a older version of a 4L80e and a newer model and that matters as to rather I can USE a 4727 or not...

So can anyone tell from the pictures what year my 4L80e IS??

Thanks

Rich

**tayto** · 05-13-2022

your transmission appears to already be updated to a 94+. The major changes from the early units 91-93 are an updated PCS valve, a vent hole drilled in the valve body, a different separator plate and updates harness. you will need to remove 1 wire from the transmission connector and repin 2 other wires. will also have to run a "twisted pair" from the pcm for the input speed sensor. your van should already have a DRAC. 4l60e to 4l80e swap has been well documented over the last 20+ years try searching on google for specifics if you can't read wiring digrams.

using a 7427 is by no means user friendly, if you are looking for something quick and easy to setup your trans this is not the way to go. if MSD has an addon to do e-trans control that is the route i would recommend for you. there are also othwr options such a US shift controller that is geared towards the average DIY'er.

**Racprops** · 05-13-2022

Originally Posted by tayto

your transmission appears to already be updated to a 94+. The major changes from the early units 91-93 are an updated PCS valve, a vent hole drilled in the valve body, a different separator plate and updates harness. you will need to remove 1 wire from the transmission connector and repin 2 other wires. will also have to run a "twisted pair" from the pcm for the input speed sensor. your van should already have a DRAC. 4l60e to 4l80e swap has been well documented over the last 20+ years try searching on google for specifics if you can't read wiring digrams.

Thanks. Will do as you suggest about google for father info. I can read wiring diagrams and repin plugs.

using a 7427 is by no means user friendly, if you are looking for something quick and easy to setup your trans this is not the way to go. if MSD has an addon to do e-trans control that is the route i would recommend for you. there are also othwr options such a US shift controller that is geared towards the average DIY'er.

Everything I read saids a factory ECM is much better that any after market system, and much cheaper.

And I want and need a full functioning ECM, to control the transmission and the engines fuel system.

From what I have read the 7427 is nearly a plug in to replace my 165 in my 93 Van. A number of people report that a 4L80e really needs a 7427 over the 165.

SO I am looking for a couple of 7427s with a 5.7 and 4L80e chip.

Rich

**dave w** · 05-13-2022

PM if interested.

dave w

IMG_2596[1].jpg

IMG_2595[1].jpg

**Racprops** · 05-13-2022

Originally Posted by dave w

PM if interested.

dave w

IMG_2596[1].jpg

IMG_2595[1].jpg

Just saw this..How much??

Also I have a Moates.net Memory Adapter: (see picture)

Question is how much can be done with a custom chip mounted on this device:

Can a custom chip be programed to run a 4L80e and a 350/383 Engine?

As I understand it carries an Eprom/medcal chip as backup/cripple drive??

Does the medcal need to be a 350/4L80e or can it be a 350/4l60e chip?? I have a couple of the 350/4L60es on hand from a 165ECM.

Rich

**dave w** · 05-13-2022

Originally Posted by Racprops

Everything I read saids a factory ECM is much better that any after market system, and much cheaper.

And I want and need a full functioning ECM, to control the transmission and the engines fuel system.

From what I have read the 7427 is nearly a plug in to replace my 165 in my 93 Van. A number of people report that a 4L80e really needs a 7427 over the 165.

SO I am looking for a couple of 7427s with a 5.7 and 4L80e chip.

Rich

Maybe this Ebay auction works for you? https://www.ebay.com/itm/38486753582...cAAOSw6JNicDoX

dave w