4l60e to 4l80e swap
Thread Starter
Teching In
Joined: Apr 2023
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4l60e to 4l80e swap Newbie here. I’m swapping the 4l60e to the 4l80e on my obs. I keep seeing different opinions. Some say you don’t need a retune some say you do. I have a harness that I was told works for both transmissions. It has two vss plugs. Do I need to retune my ecm? It’s 2004 gen 3. Help me out.
Teching In
Joined: Apr 2023
Posts: 13
Likes: 3
Newbie here. I’m swapping the 4l60e to the 4l80e on my obs. I keep seeing different opinions. Some say you don’t need a retune some say you do. I have a harness that I was told works for both transmissions. It has two vss plugs. Do I need to retune my ecm? It’s 2004 gen 3. Help me out.
It could be that your harness has the 2 iss sensor connections (which you need for the 4L80e), but the arrangement pinout on the big case connector is different for each transmission. You need find out which one you have setup for. LT1 swap.com has a wiring diagram of the pinout.
My 99 Silverado had a 4.3 and I swapped to a 5.3/4L80e. I really like that combination. Pretty easy/straightforward
swap.
Thread Starter
Teching In
Joined: Apr 2023
Posts: 2
Likes: 1
Reply Yes, definitely need a reflash, as each transmission is different on the ECU side.
It could be that your harness has the 2 iss sensor connections (which you need for the 4L80e), but the arrangement pinout on the big case connector is different for each transmission. You need find out which one you have setup for. LT1 swap.com has a wiring diagram of the pinout.
My 99 Silverado had a 4.3 and I swapped to a 5.3/4L80e. I really like that combination. Pretty easy/straightforward
swap.
It could be that your harness has the 2 iss sensor connections (which you need for the 4L80e), but the arrangement pinout on the big case connector is different for each transmission. You need find out which one you have setup for. LT1 swap.com has a wiring diagram of the pinout.
My 99 Silverado had a 4.3 and I swapped to a 5.3/4L80e. I really like that combination. Pretty easy/straightforward
swap.
TECH Enthusiast
Joined: Jan 2019
Posts: 677
Likes: 490
From: Roxana, IL
Sounds like all you need to clarify is if your tune is for a 4L80E transmission or not. 4L60E's didn't have a ISS sensor. If you have 2 sensor connectors it may already be segment swapped for the 4L80E. Upload your tune and someone can look at it and see. I can only look at HPtuners myself.
Sounds like all you need to clarify is if your tune is for a 4L80E transmission or not. 4L60E's didn't have a ISS sensor. If you have 2 sensor connectors it may already be segment swapped for the 4L80E. Upload your tune and someone can look at it and see. I can only look at HPtuners myself.
Last edited by 5.7stroker; Apr 9, 2023 at 06:47 PM.
TECH Enthusiast
Joined: Jan 2019
Posts: 677
Likes: 490
From: Roxana, IL
What version VCM editor are you using?
I am using the latest 5.0.4. I can edit and save anything. You just can't flash it without paying for the credits. I have edited and saved my own segment swap file and I'm ready to flash it.
I am using the latest 5.0.4. I can edit and save anything. You just can't flash it without paying for the credits. I have edited and saved my own segment swap file and I'm ready to flash it.
5.0.4 is what I was using. Wouldn't let me save the segmented swapped file and a pop up window came up asking for credits. As soon as I closed the pop up window, the file closed. Tried it 3 times.
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Here's the stock files I pulled from the custom ecm repository. Loaded the 4L60E one and loaded 4L80E as the compare file. Then did the segment swap, but it wouldn't save. Maybe the stock files are bad. Note that the title of the 4L60E file says 12212088 but it's actually a 12202088 OS.
Last edited by 5.7stroker; Apr 10, 2023 at 12:58 PM.
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Verdad Gallardo TECH Enthusiast
Joined: Jan 2019
Posts: 677
Likes: 490
From: Roxana, IL
Yeah that's what I thought, that unless you flash, you don't need credits.
5.0.4 is what I was using. Wouldn't let me save the segmented swapped file and a pop up window came up asking for credits. As soon as I closed the pop up window, the file closed. Tried it 3 times.
5.0.4 is what I was using. Wouldn't let me save the segmented swapped file and a pop up window came up asking for credits. As soon as I closed the pop up window, the file closed. Tried it 3 times.
https://ls1tech.com/forums/pcm-diagn...ers-mpvi3.html
TECH Enthusiast
Joined: Jan 2019
Posts: 677
Likes: 490
From: Roxana, IL
Here's the stock files I pulled from the custom ecm repository. Loaded the 4L60E one and loaded 4L80E as the compare file. Then did the segment swap, but it wouldn't save. Maybe the stock files are bad. Note that the title of the 4L60E file says 12212088 but it's actually a 12202088 OS.
TECH Enthusiast
Joined: Jan 2019
Posts: 677
Likes: 490
From: Roxana, IL
I was able to view the file you sent on the new software. Thanks again!
TECH Enthusiast
Joined: Jan 2019
Posts: 677
Likes: 490
From: Roxana, IL
It asks for a device code when attempting to take the training for Parameter access. I was just playing around with the latest version of the software to see if I could do a segment swap on it for viewing purposes without license. I was trying to help someone out. My MPVI 1 is on an old laptop that I use on older firmware on that I did my own segment swap on without issues. Then again, it's registered with license, etc. It's just interesting that HP tuners on their newer VCM suite doesn't let you do something simple like perform a segment swap on stock files just to view it without registering the software to a MPVI device.
I was able to view the file you sent on the new software. Thanks again!
I was able to view the file you sent on the new software. Thanks again!