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i have the square unit in 1 of my cars, a few of the led's died pretty quickly.

but have the smaller round units in customer cars and they are fine are years.

if this is your first go at this type of combo, I might be worth contacting some one with more experience.

yes, it ties in deeply with the minimum air flow tables in the ecu. on the tcm side sometimes the closed throttle downshift option works best on throttle mode.

yeah, the use regulator settings should be all thats needed. however there are other tables for lockup control that are not mapped in the software., well there are lots actually, but the ones shown...

buy this https://global.ihs.com/doc_detail.cfm?item_s_key=00443334

it's the engineering standard docs from GM. it will have all of that info.

example:
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in a factory setup it's actually the ecu that get's a triggered input for low range not the transmission.

*it may be possible* but there is some switches that enable 4wd mode. might need to source...

late to the party, at least the trans os is based off 24256125. I would just do a segment swap from an 2010/2011 hsv. reset the adapts, set your relevant tyres/diff size.

the shifting back to 5th...

highly likely you have the wrong os in the tcm.

does the car have the original tech still?

Ive played around with decompiled binaries for the trans & there is lots of options that both efilive/hpt/tunercat don't show. Understandable because theres so many god dam parameters!

anyway ive...

what state in australia is the car located in?

from my experience, every man & his dog are tuning ls cars now, even a lot of workshops (at least in w.a) still don't have a very good understanding...

probably just a timing retard event for the shift.

need to post what the os version are on the trans & ecu. what you explain sounds like the box is going to limp mode.

check for dtc's. bet your getting some can based errors.

not sure if the parameters are the same for the 8 speed but in the 6.

u go to transmission --- Shift general
change the range active to D4. change disabling the Up/Down Req option too. (this...

Im working with Holden Calibrations (12609099 & 12607218) for now & funnily enough by default it has the 4WD low option already enabled. None of the cars i work with ever have DOD anyway, so no big...

I had a sneaking suspicion there was multiple inputs to select between maps, unless it used some form of resistance based difference like the t43's, but i couldn't see anything in ghidra.

So it...

very nice. Any hints if there is a pin used to select the throttle maps. I have a definition for an old OS that gives an option to allow switching maps via CANbus or Discrete requests.

"Used to...

you cant write an 08 tune to anything newer than 2009. the techm's are different. with hpt it may brick it, but with other software you can recover. I've tested it.

try logging the engine rpm, trans vss, input & shaft shaft from 2 cars & report back findings & the OS/cal. I might be able to find a bin file & see if anything lines up.

do it with a minimum pids...

there is probably an unexposed limit. i know the 6l80 has an output shaft speed limit on 6th gear which forces a down shift back to 5th.

possibly something similar for input shaft speed limit.

will be using a tcm2650 setup for sure. you need to see what the tcm2650 is seeing for throttle position and if some of the inputs are randomly triggering.

it'll have a 3 pin plug that kinda looks...

2014 tcm os is not compatible with an early 08 ecu os. your gonna need to swap the techm.

Yep. that was OS 24256025.

This time it was OS 24256125, commonly used in the PPV over in the states & our 2011 series 2 Commodores. This particular customer was using it in a conversion for a...

while i dont have a solution for you. i can tell you that the whole tcc not locking up completely is something in the tune that can be turned on/off. However I still believe it's something that has...

im currently away for work, so dont have access to my car to verify what it is i changed. i know i made my traction control rather aggressive & even changed the pedal response map to keep the power...

i have a blower car & have played with spark/throttle at the same time.

are you adjusting the maximum engine torque vs rpm vs gear table?

TCS maximum & minimum engine torque parameters also...