E40/T42 no ISS Trans tune.

[TransGo Robert]

Still slips like crazy, they did not fix the problem. I would not disable the code, it is there to save your converter clutch. If it keeps commending it like that and slips 200 RPM or more it will burn the friction material in no time.

[jhbau1000]

I don't know what happen or if this log shows anything, but I went to drive truck to the transmission shop and it only made it about a mile and it lost everything. No forward or reverse gears. Had to pull in back home. You can see at the end of log it just dropped everything.

[Alvin]

It took me forever to find a way to change PIDs that won't graph because they are in text instead of numbers. Here's how I do it, It is a pain but when you need it at least it is doable.

First open the log file and then go to top left, click on Log File and then in the drop down click on Export Log. In the window that opens select Comma Separated Text (.csv). and save the file to your desktop.

Next open the file in Excel or whatever you use for spreadsheet and find the PID you want to change. Once you find the PID you will see a number above it, right it down somewhere, you will need it later.

Next select the entire column for that PID and do Ctrl+H on your keyboard to bring up the find and replace box. From there you have to do a find and replace for all the texts before ON and OFF that appears in there and replace it with nothing. Leave the replace box empty.

Next do a find and replace for OFF and replace it with zero and finally a search for ON and replace it with one.

Now save the file. The problem here is if you try to open this new file in HP Tuners it will not works because Excel add a bunch of ,,,,,,,, in there for the first few lines. So you got a get rid of those... open the file but this time using notepad instead of Excel. Now highlight one of those long strings of commas ,,,,,,,,, and again do Ctrl+H. Paste what you have on your clipboard into the find box, leave the replace box empty and do replace all. Now close and save the file.

Now drag that csv file back in to HP Tuners (click, drag and drop it in) and the file will now be in HP Tuners like before but this time showing 0 and 1 instead of text for that PID. But wait, we are not done.... I did say it was a pain so we have two more steps to do...

Go into tools and create a new Math Parameter. Give it a name of your choosing, abbreviation, etc and then in the box where you would normally put the formula enter the PID parameter ID you wrote down earlier putting it in between two square brackets and save it. In this case it would be [14102].

Last step simply right click your chart area and open the chart layout box. Add a new parameter, and go down the list all the way to the bottom to "user defined" and you will see your newly created math channel there. Adjust the color and scale to yur likcing and ther you go you can now graph that PID.

Did I mentioned it was a pain to do? LOL

I wonder if you can get around this with a math.

If PID.lockup = "ON" than [user defined] = 1 else 0

something along those lines... worth a shot.

[Alvin]

I don't know what happen or if this log shows anything, but I went to drive truck to the transmission shop and it only made it about a mile and it lost everything. No forward or reverse gears. Had to pull in back home. You can see at the end of log it just dropped everything.

TransGo Robert might be able to help you with this. To me from the start sounded like something wrong inside the trans. I've ran into that code plenty of times and it was either a new TCC or a trans rebuild that fixed it.

I did want to chime in on the ISS. I often setup 4l70's and 80's without ISS. I've done in GEN 3-4 and across a ton of platforms. I've never had a issue.

[TransGo Robert]

I don't know what happen or if this log shows anything, but I went to drive truck to the transmission shop and it only made it about a mile and it lost everything. No forward or reverse gears. Had to pull in back home. You can see at the end of log it just dropped everything.

Either the lock-up clutch lining came apart and plugged your filter or something snapped in there. If it is the filter it will move again after letting it sit for a while but soon enough it will stop again after driving it a bit.

[TransGo Robert]

I wonder if you can get around this with a math.

If PID.lockup = "ON" than [user defined] = 1 else 0

something along those lines... worth a shot.

I tried that before and a ton of other things hoping it would work but it does not seem to recognize text at all unfortunately.

[jhbau1000]

Ok after two weeks the transmission shop just called they still cant figure out why the TCC slips at lockup. What are we missing here? They have put in 3 different torque converters updated TCC valve redone all wiring and still slipping. They are thinking maybe something is cracked in the case. I am posting the tune file hoping someone can take a look and just maybe find something I missed or put my my mind at ease that its not the tune. This is a non ISS 4l60E.

[TransGo Robert]

Ok after two weeks the transmission shop just called they still cant figure out why the TCC slips at lockup. What are we missing here? They have put in 3 different torque converters updated TCC valve redone all wiring and still slipping. They are thinking maybe something is cracked in the case. I am posting the tune file hoping someone can take a look and just maybe find something I missed or put my my mind at ease that its not the tune. This is a non ISS 4l60E.

It's been a while on this one I can't remember all the details but I can always go back and look at the previous logs to see if anything changed. Please post a two logs to help narrow it down. One log driving it when the unit is cold at steady speed in 4th gear and the same steady speed in 4th gear but this time with the transmsision fluid above 170F. That will allow me to figure out if it is an hydraulic likeak they are missing somewhere or something else.

[TransGo Robert]

Make that three recordings. Take one once above 170F steady driving around 50 mph but this time in D3 instead of OD range.

[TransGo Robert]

Looking at your previous log, I see the input shaft speed sensor is not working. According to the VIN it should have one, was it deleted in the tune or something?

[jhbau1000]

There is no ISS sensor in this transmission. This was a 06 Colorado 4x4 with a 5.3l engine swap. The transmission is from the Colorado it was rebuilt to fit behind the 5.3l. The ecm and tcm was changed to a e40 and t42 and the ISS was disabled in tune.

[TransGo Robert]

There is no ISS sensor in this transmission. This was a 06 Colorado 4x4 with a 5.3l engine swap. The transmission is from the Colorado it was rebuilt to fit behind the 5.3l. The ecm and tcm was changed to a e40 and t42 and the ISS was disabled in tune.

OK got it, so definitely get a recording in third gear as well, with no turbine sensor it could be something else then the converter that is slipping. But in your other recordings it sure looks like you had no lock-up at all. If that's still the case cold and hot as well as in third, the next step will be to check with a voltmeter if the computer is actually sending the command like it thinks it is doing.

[jhbau1000]

It will be a few days before I can put together more logs. I don't have the truck its at the shop. I cant get there today before I have to go to work so it would be Monday before I can make logs.

[jhbau1000]

I did make a change in tune to not allow the TCC to engage in 3rd gear.

[TransGo Robert]

I did make a change in tune to not allow the TCC to engage in 3rd gear.

If possible could you re-enable it just for the log? It would help rule out a couple of rare but possible issues.

[Shrek]

I have been down this road a few times.

A popular local transmission shop would only build 13-pin 4L65 transmissions (no ISS) for LS powered Hot Rods.

These work fine when controlled by a P01 or P59 PCM, but can sometimes cause issues like you are experiencing, when controlled by a T42 TCM.

Given that you are using a 2006 E40 ECM, I would recommend programming the T42 as a 2006 GTO.

The 2006 GTO used a 4L65 without an ISS, and was paired with an E40 ECM.

Any time a similar LS conversion caused the issues that you are having - once all of the wiring was confirmed and the transmission was rechecked (or rebuilt) a T42 TCM programmed as a 2006 GTO always got things working properly (when paired with an 2006 E40 ECM).

[jhbau1000]

Shrek, I would try it if I had a 2006 GTO T42 file. lol

[gtstorey]

Shrek, I would try it if I had a 2006 GTO T42 file. lol

there are some in the tune repository if they have the trans included.

[jhbau1000]

I found two in the tune repository but the TCC is set to not allow engage.

[gtstorey]

I found two in the tune repository but the TCC is set to not allow engage.

Can you not change that setting once it is written?