[Vigilante375]

Originally Posted by Camaro1973

2019 has the t87a also.

Not every 2019 has it, at least that's what I've read.

[18SS1LE]

[QUOTE=KingLT1;11078305]I wouldn't want the trans to shift like the 2-3 does stock ever. That is torque management cutting spark and closing throttle on that shift creating a big delay which negates a lot of the potential of having the extra gears. I would want the A10 to shift like the 4-5 on every shift and that can be achieved with tuning.


Can I pay you to get it done? I just want it to shift like 2-3 all the time. I have a 2021 stock everything..pm me if possible

[Camaro1973]

Originally Posted by Vigilante375

Not every 2019 has it, at least that's what I've read.

ZLE don’t ZL1 yes.

[Camaro1973]

Originally Posted by JSH

You're not the first to wonder what I'm talking about...

Hahaha at least ya got a sense of humor … I like that

[JSH]

You give them your car's VIN and they flash the stock TCM's calibration. Their 87a isn't totally "plug and play", because tune adjustments are absolutely required in the ECM in order for it to work correctly. There’s instructions listed on their invoice.

Originally Posted by radz28

I'm probably misunderstanding, but HHP clearly states the TCMs don't come ready-to-run out of the box without confirmation of some basic stuff. Did you follow the directions, verify the tune file you were starting with was appropriate, and then made whatever corrections to the stock file you wanted? These TCMs don't come "tuned" to my understanding. You have to calibrate some engine parameters along with the TCM.

[radz28]

Originally Posted by JSH

You give them your car's VIN and they flash the stock TCM's calibration. Their 87a isn't totally "plug and play", because tune adjustments are absolutely required in the ECM in order for it to work correctly. There’s instructions listed on their invoice.

You're right. I have an invoice and did all that I wasn't sure if I was misunderstanding what the OP was saying. But yeah - like you said - all that stuff's there on the invoice. We'll see if it's all that easy...

[JSH]

We basically have to figure out how to launch and run the car down low at WOT, uninterrupted and unnecessarily affected by conservative GM programming, while achieving a certain wheel spin, say, 5-10%. It's going to take a bunch of hits, which, for me, means it will continue next spring.

Originally Posted by radz28

You're right. I have an invoice and did all that I wasn't sure if I was misunderstanding what the OP was saying. But yeah - like you said - all that stuff's there on the invoice. We'll see if it's all that easy...

[Camaro1973]

Originally Posted by JSH

We basically have to figure out how to launch and run the car down low at WOT, uninterrupted and unnecessarily affected by conservative GM programming, while achieving a certain wheel spin, say, 5-10%. It's going to take a bunch of hits, which, for me, means it will continue next spring.

An experienced tuner knows exactly what to adjust in the TCM

[radz28]

Anyone having issues getting this TCM up and going? The car throws a message to shift into PARK and basically disables itself. Shoot - I didn’t even start the car or shift OUT OF PARK, and get that message. Like - I can’t even unlock the trunk… I can’t even turn the ignition off. I have to disconnect the battery in order to shust the car OFF. I disabled the P2544.

[KingLT1]

Originally Posted by radz28

Anyone having issues getting this TCM up and going? The car throws a message to shift into PARK and basically disables itself. Shoot - I didn’t even start the car or shift OUT OF PARK, and get that message. Like - I can’t even unlock the trunk… I can’t even turn the ignition off. I have to disconnect the battery in order to shust the car OFF. I disabled the P2544.

I believe that is because it's not communicating with all the other controllers. Does it have your vin programmed and all that stuff? I know on the ZR1's you have to use a GDS tool to program the TCM properly so it will communicate properly with the rest of the system. LMR had a little video on it a while back. Not sure if this is a similar situation or not.

[JSH]

Originally Posted by radz28

Anyone having issues getting this TCM up and going? The car throws a message to shift into PARK and basically disables itself. Shoot - I didn’t even start the car or shift OUT OF PARK, and get that message. Like - I can’t even unlock the trunk… I can’t even turn the ignition off. I have to disconnect the battery in order to shust the car OFF. I disabled the P2544.

I would start by calling HHP and confirming that you gave them the correct serial number and discuss your problems with them

[radz28]

Originally Posted by KingLT1

I believe that is because it's not communicating with all the other controllers. Does it have your vin programmed and all that stuff? I know on the ZR1's you have to use a GDS tool to program the TCM properly so it will communicate properly with the rest of the system. LMR had a little video on it a while back. Not sure if this is a similar situation or not.

I provided all of that when I ordered/paid for it. I asked about almost all of that before I made my order and Anders said none of that was necessary... The instructions are easier than a T87a-swap, really. I don't know much more than that. ARG...

Originally Posted by JSH

I would start by calling HHP and confirming that you gave them the correct serial number and discuss your problems with them

Yeah - I sent Anders an email yesterday hoping he'd get it today. The one from him had a label from a different company though... I think it was ProRacingSolutions or something like that. Do you know if yours had the same label? I thought maybe they did the work for HHP, but don't know. If I don't hear back about this quickly, I'm about to pull out of this little venture altogether. I just realized I'm going to have to pull the front facia off for smog each time because of this controller. That's like 6-years away, but it's a lot of work for something so small... I'm too old for this shit.

Thanks for your guys comments. I'm all ears for ANYTHING else you think might be relevant.

[JSH]

Originally Posted by radz28

I just realized I'm going to have to pull the front facia off for smog each time because of this controller.

This is a new issue for me. How did you discover it?

[radz28]

Originally Posted by JSH

This is a new issue for me. How did you discover it?

Which part of my difficulties? LOL...

You have to attack that TCM by removing the facia. It's not that hard, but there are a thousand fasteners (use an battery powered tool - it makes it faster - just keep it on a low torque setting to not strip or break anything). I was more pissed that I pulled apart half the wheel well to determine I needed to pull the whole facia. Have a buddy help you remove and install it though so you don't scratch anything. There are LOTs of clips, too. There's the DRL-harness that you have to address, so mind that. It's not that big a deal. I'm just irritated it's not working and I have to wait with my car blown apart.

The TCM-issue is just weird. I'm, frankly, pretty pissed about this. I was on the fence already, not really having much trust in it working, but my confidence is waning in this product, so I might push to return it and seek a refund. I specifically asked if I needed to follow HPTuners' procedure, in conjunction, but maybe I'm just confused or something. I wasn't told to use HPTuner's procedure, but maybe that was implied....

In case you want more detail:

• I pulled my T93
  Installed the new one
  Connected HPTuners to the car
  Received the "SHIFT TO PARK" message
  Car "locked-up"
  Disconnected the battery
  Reinstalled the T93
  Connected the battery
  Flashed a new ECM-file with the disabled P2544
  Disconnected the battery
  Installed the new one
  Connected the battery
  Attempted to connect to the car with HPTuners
  Immediately received the "SHIFT TO PARK" code again
  Car "locked-up" again
  Disconnected the battery
  Plugged the T93 in
  Car is back to normal

I left the car like that until I hear back from HHP.

Any help is always appreciated.

Thanks to everyone.
Chuck