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UPDATE: I'm an idiot, logging in standalone mode before. Hooked up a computer and it's looking good! Still no OSS, that's another thread.

Thank you, and please continue hjtrbo, Rob, and ns158sl!

Thank you both, don't mean to de-rail your thread!

Yep, seems like my TPS/RPM's are fine, but lots of charts spikey. I did remove a couple channels, slowed down the polling interval on others. No...

I would appreciate an explanation hjtrbo!

Would also love to know why my graphs for PCS pressures and TCC slip/pressures are basically spikey straight lines and not detailed like the everyone...

Curious what vehicle is this out of?
I don't understand the details, but have noticed these differences on the tuning side.

'15+ have no adder modifiers. And 1-2 and 5-6 volume presets halved,...

Same for me, the one time I tweaked the map to make it more linear, REP right away. (2012 Tahoe)
Haven't messed with it since.. Something about TAC module programming?

Sorry I don't know the answer, but can someone upload a factory stock calibration? (with transmission tune!)
I don't see anything newer than 2018 in the tune repository...

This won't do it? It was set to 3,000 rpm on my 2012 Tahoe, set at 5,500 rpm on the '15 tahoe..
Have not tested..
145591

Awesome, I did fill out a ticket and they have responded already! I need to send some files to them. Will update.

Hooked up a Tech2, got OSS signal! Looked normal, steady.
Reprogrammed ECM with limiter source to GMLAN, still no signal in VCM scanner!?

BTW I have 4WD so I guess the OSS sensor is on the...

20 minutes doable with bt dieselworks autosync

Wow! Thank you Transgo Rob and blindsquirrel!

I will check into my OSS signal and get a better log!

It doesn't always miss recording 2nd gear, and I don't -notice- slipping in first...
Could...

I've noticed a few instances in VCM scanner, it does not show me in 2nd gear, yet the graphs indicate I should be in second (rpms drop, speed still climbs)
Is this a tuning issue? Or do I have my...

Good to hear, though I still haven't zero'd the slip as I'm still tweaking shift schedule!
210k on my 2012 5.3/6l80.

Here's my current tune.. 145370

I imported these 2018 settings for now.. ...

I take it you mean the torque converter clutch?

How about 0-50% throttle locked, all lock/unlock speeds and shift speeds higher than stock?
Should be no less reliable than stock I'm hoping.

I...

Thanks for the datapoints 5FDP and 2xLS1!

Stock converter.. Still have slip enabled.. figure 20 rpm slip is only one revolution every 3 seconds.
Updating to 15+ slip maps, still commands 20 slip...

Here is original (2012) torque adder and inertia tables..
145142

Next the 2018 maps..
145143

Is shift time a little slower on decels, but faster for accel?
3,4,5,6 maps identical other than...

Thanks for the tips! I did bump the 0-25% a TINY bit, and mostly blended it to a stock 2015 shift schedule.
Need to get on the highway more for the 5 and 6 tuning. So far they are both about 15mph...

My vehicle is a 2012 Tahoe, compared to a 2015 Tahoe and 2018 Silverado tunes.
I'm sure the OS's are different, as I cannot directly compare all maps, but many look similar.

Daily driver, so I'm...

Got it, thank you for the clarification! I feel much better about giving 0 slip a try (without messing with other pressure settings for now!)

Thinking about leaving some slip.. maybe in the lowest...

Ah, thanks!

I think I see it, Must be the time zone like you mentioned!

When you hit about 80% Throttle? And the requested lambda goes from 12.21 to 14.17 when you drop to 73.5% throttle?...

Apologies hjtrbo! Let's clear this up. I was comparing the 20rpm slip vs 0rpm.
Argument I've heard, the cover deforms under too high a pressure.

Perhaps I misunderstood this statement...

for me the log file only shows 9:17:xx to 9:27:xx!
Also does not show PE mode..

I'm new, so likely NOT ABLE to help, but wanted to take a look anyhow...

The '15-'18? 6l80 has some tuning differences.

I felt the same as ksherna3 regarding no lock in 4th. In addition to the heat, cruising was less pleasant with it unlocked. (letting off throttle to...

Wow! Thanks for the excellent information Robert! I have linked this thread to tahoeyukon.com forum, hope you do not mind.

Is there anyway to tell just how badly the PR valve maybe worn through...

www.btdieselworks.com

The AutoSync, with BCM programming can extend it to 21 minutes. Allows upto 2500 seconds with additional ECM tuning.
Many other nice features like DTC reader in dash,...