Hello,
I've been tuning a LQ4 and 4L80 combo that is in a 2004 GMC chassis but its a 2001 LQ4 with some other odds and ends. The tune is from the 2001 Silverado which from the factory came with the 4L80 so I'm not sue why it wont lock up.
I have played with the misfire tables and adjusted the speeds up and down to try and get it to lock but no avail. I have tried to command the TCC lock up which I can see the TCC applied goes to "YES" when I force it in the scanner but it still wont lock.
With the converter unlocked the trans is getting pretty hot and I cant get much time tuning the MAF/VE tables with the trans about to burn up.
Can you guys possibly take a look and tell me if anything is wrong that you can see? I did compare this file to stock 2004 and 2001 repository files and there is nothing unusual that I can see.
Hopefully my tune and logs attached properly this is my first post asking for help after reading for the last several years in the planning.
TCC wont lock up commanded or not.hpl
Drive back from town one 70mph pull no lock up 1-2-23.hpl
Jeep Step 19.hpt