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Appreciate the feedback. I went back in and made some changes and now it’s holding 80+% on Tcc duty cycle and holding firm lockup.

142795

142796

tune and log attached on this log it locked up perfect the first time, then when i stopped and took back off it was slipping while locked

142793 - noticed slip was higher than normal

142794 - normal slip rate for normal driving

both logs were taken today. the one not named was
the first drive today and i stopped for a bit...

Are you in basic or advanced view?

142560

this is what im working with so far. it was way worse than this. ive done enough cleaning up that itll work but could be better.



and this one is after some revisions. going to try...

ill check into that. the express van tune i have is proving to work but is very bad of a tune. im comparing now with a 5.0 305. and making some changes that are needed that are bad in mine.

yeah dbc all stock except some exhaust

anyone have a 411 swap 5.7 4l60e tune file they'd share for me to compare? some things are quite questionable in the tune i downloaded and used. I have a lot corrected and the truck runs fine. just...

All stock except exhaust,k&n air filter , and a catch can

I’ll give it a looking over. And compare. It seems to want to show it more cruising than under wot (2:24.3:00,3:29,3:52,6:50,8:17,8:54) minute marks in the log i notice. it does it a little under...

142246 current tune.
142247 last good log i have from tuning with wideband cant remember if i was running 89 or 93 at this time. still either way none of the shown KR was audible knock.


...

Anyone have a good timing table that won?t knock itself to death on 87 octane? I have my 15 Silverado tuned. In logs it shows a good bit of knock on 87 but it?s not audible. With 93 it shows no...

I'm not talking lifters in engines. i know i could write a pcm or ecm no issue. im asking about late model tcm, like would be in the 6l80/6l90,etc..

I thought the same thing. that's about all he would say is they send a file to be used in their reman transmissions.

I looked on jasper and they(according to their site and instruction video)...

was at the local repair shop the other day and their mechanic asked me the following.

" we put in jasper transmissions, mainly 6 speeds, and they sent us a file to put into the tcm or pcm on...

got my 1996 411 pcm swap all but done, got it tuned, everything running happy. only thing im lacking information on is the fuel gauge.

question is, do i need to do anything to the fuel gauge...

[email protected].

I did. That cured it

4l60E. I’m thinking I need to find a different tune to try. I tried to swap the 4l80E to 4l60E but that may be the issue.

411 swap into 96 silverado. used lextechs pinout. 12200411 pcm.
used a 2002 express van OS to get it running. im getting a very very harsh 1-2 shift and no tcc lockup. getting p0717 code. ...

I know I need a computer from a 01/02 express van with the L31 engine, plus 2 connectors for the 411 pcm. Does anyone have or know where to get the pinout spreadsheet?

Recently acquired a...

What is it that makes the P59 ecm so ticky? I've done several now and I'd say about half will let me do the first flash through the obdii port no problem. the rest will only let me read and the...

My issue was in my tune, I had it shifting good and couldn’t remember(find) what I did to mess it up, and had tried working backwards which wasn’t helping so I had to reach out for help.

I’ll sure check into it. Appreciate that.

I second this, Matt knows his stuff. i also followed goat rope garage for some tips and tricks to.

One thing is always save as when you make a change that way you can go back to the previous...