Im curious about the U0100, and what exactly you are doing when it comes up. How many times have you read the vehicle with the device?


I've done this a handful of times. I follow all the screen prompts, turn to run when it says so, unplug it when it say unplug. Throws the code every time. Again ...

Thanks for sticking with this for me Mike. I appreciate it.

The U0100 is not uncommon in some cases, but I wouldn't expect it every time you use the device. Be sure to follow any key cycle prompts at the end of a read or write which is there to clear any codes left by the process. The U0100 is ...

Sorry, I should have clarified. 2022 Chrysler 300S hemi. All I’ve done so far is just hooked the T2 to the factory PCM to copy the factory settings. However, some funky things started to happen when I did that: It lost communication with the factory PCM and threw U0100. (I use the T2 to clear it, no ...

I have a T2, an unlocked PCM, as well as my factory PCM that is still in the car.

Say I pop in the unlocked PCM, flash the tune, and disaster strikes: the unit freezes, I can't recover the factory tune and the car is bricked. Even better! It happens on a Friday night and I can't reach out to you ...

Jeeze… I almost had heart failure!


My voltage while I’m running down the highway is 14.2 V. That should be enough right?

mikel wrote: Thu Oct 30, 2025 4:59 pm caveat, if it fails on the TCM, its another mess

Ugh… what are the odds of that happening? Sounds like I should avoid putting the transmission tune on it.

Hi everyone,

Very quick question: I happen to have my original ECU and my unlocked ECU. Let me throw this out there.

Say I install the unlocked ECU and begin to tune, and then disaster strikes, the tune fails to upload and I can’t restore to stock tune. Would I be able to just simply remove the ...

It was Mike. Everything updated perfectly. Sorry, forgot to follow up on the post.

BTW, was going to call to ask customer support but I’ll just ask you here. I did the core swap exchange program, but I’m approaching the 14 day limit, because I haven’t had a lot of time to finish swapping out the ...

Hello all,

I went to update my T2 before another attempt to swap my PCM and finally tune my vehicle.

When I connected my T2 to the Windows PC to update I got a prompt that it failed to connect to the server. I tried it the Wifi way and I got a prompt: DOWNLOAD OF UPDATE FAILED. AN ERROR OCCURRED ...

Is silicone lube ok to use around electronics?

Thanks Mike. I’ll give that a go and see what happens.

Hello, all

I went to remove my factory PCM on my Chrysler. Disconnected the battery, removed the cowl, unscrewed the 13 mm bolt, etc…

Following all the videos, I pulled the PCM out, pressed the center button, pulled back the latch on the connector, but the connector was stuck on the terminal. I ...

P1400?! Why would you assume that’s what I was referring to? :lol:

All kidding aside, you read my mind!

Yes, according to many sources Diablosport licked that one a while ago. I think it only pops up if you were to switch the PCM back to the stock one. Mikel, correct me if I’m wrong.

Still, I ...

Thanks PJD,

BTW, while we’re on the subject of codes. Do you know of any ODB two scanners that would clear any hidden codes that only the dealer can see?

I was looking into buying this:

https://www.amazon.com/dp/B008XN7NUG?linkCode=ssc&tag=scottykilme0c-20&creativeASIN=B008XN7NUG&asc_item-id ...

So it sounds like if it does for the code, it would be as simple as using the Trinity-2 to clear it with the diagnostic tools?