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You are probably just pulling timing too early, I am pulling timing based on slip %. The 3-4 shift will generate a 22% slip on my Holley when the gear is commanded but wont actually pull timing until...

Just a quick update for you all. I think I may be on to something here. Transmission is definitely not broken but I may have stumbled upon the reason for this thing not shifting good. Its down below...

Thank you, I should have been more specific, I am looking at trans slip, RPM, TPS, and the 5 commanded PCS pressures,gear. Thats all I need. Thank you

And Tre, Thank you for your tune file, I'll...

98724
Yes, Imagine what exhaust backpressure would be in the driver's log with a hole that small to pass air through, it was restricted down to 1". If you can't get the heat out, bad things happen...

98702

Any of you guys have some normal, cruising around and WOT datalogs? I'd like to try and figure out why my setup has been acting so weird and I'd love to look at some of your logs to compare. I...

Just wanted to update this since I had forgotten all about it. Issue was collapsed flex pipe on the driver's side turbo crossover pipe. All has been good since the end of last summer, lots of miles,...

* Just want to update this is say that 70Hz actually worked the best for me. 612 started acting weird once I started driving. More fun bug issues! I also recommend changing the other PWM freq (7-9) I...

I emailed Holley to see if they could add in RPM rate of change that way on an upshift, RPM ROC would go negative and I could pull timing based on that change. If they don't, they don't, I'll manage...

Yeah, not looking to ressurrect this from the dead, but I am also not looking to make new threads when this has covered alot. Will this ever get "Fixed"? I'm trying to tackle some flaring issues and...

Why is it that some 6l80/90 tunes have the minimum oncoming volume preset max'd out while others have zero? Does this make a difference in driveability? Hoping for a clear answer on this, my 90 came...

So everyone is aware of my setup, Holley Terminator X, TCM 2600, Stock 6L90e, 80mm turbo LQ4
Since I won't use launch retard on this setup, I am triggering launch retard as my form of torque...

Got mine finally working. I have been driving it a little bit and will need to tune it. My OS doesn't have a desired shift time on the upshift shift timing tab. Can I change my TCM OS to one that...

Complete Longshot! Anybody in the group have experience with PCS TCM2600/2800? Bought a controller second hand, I can flash and read the calibration file but the controller won't go online. If...

Please take a look at my logs and attached photo. I get this bad misfire on decel about 3 seconds after taking my foot off of the pedal that feels like I just hit something (knock). The spike is...

I would definitely check the flex joint and look for a blown out 3 bolt gasket if you are using graphite gaskets. You can use dawn dish soap and water. You can try using the blower function of a shop...

It's very weird because the behaviour looks exactly like an exhaust leak. Driver's bank has big fuel addition with the passenger bank being pretty good. How are you checking for exhaust leaks? Could...

F yeah dude, that's awesome, I had a feeling it was crank trigger related with it only firing that one coil. Gives me inspiration to do a 4g63/4l80e ranger

Wow, super cool setup man, I hope the PCM works out!

https://photos.google.com/share/AF1QipNQn-nCGYOyI2e2vXbNWA04NxfwPotkx4PSWJNBcCS6DiIqCKCWhuql3fEL-gDJwg?key=QkdIY0RxNkR3b0NsTWR2NVBlNmx5cE9GdHVpbURB

Just to ask the obvious but are you using a GM 24x wheel or an aftermarket wheel. GM has a weird staggered tooth wheel for both the 24x and 58x.. Does it look like the wheels pictured on this:...

That tune is long gone, it has been modified a lot since. AEM 4.2 Uego wideband, as stated. I have some updates as well:

Reading spark plugs:
I learned from alot of articles what to be looking...

Yeah, I fixed it in the tune, you should be in SD now when the MAF is unplugged. It would probably take some time with it actually running for it to ensure the cam signal is fine other than if the...

I didn't actually think it was a 1.7L v4, wow that is a crazy engine, off to youtube to look at videos of one.

You weren't properly in SD mode, and it's Calc airmass P1514/p0068. Are you running...

Your RPM's look good for starting so it is getting a good trigger, if you are only getting one ignition signal, I'd try swapping the coils around to make sure your assumptions are true. Try this file...