Reflashing the T42 Operating System

[S10Wildside]

I have a brand new 2005 Corvette TCM and had assumed I could put any TCM calibration into it. What is preventing EFILive from updating the operating system and doing a full reflash? Are there different hardware versions of the T42? Can a Tech2 put a new operating system and calibration into the T42?

[GMPX]

TechII can certainly program a new OS in to the T42.
We have not implemented T42 Full flashing, in fact, you are the first person to ask about it.

BTW, I looked at your website, in your comparison table between the various computers you show the 700R4 not supported on the LS1 PCM.
I might be wrong but I have a feeling there might have been an application that did not use a 4LxxE auto very early on? It may have been a non electronic auto.

Cheers,
Ross

[ChipsByAl]

The 700R4 was never behind an LS1 in a production vehicle. The last year for it was 1993. That was only in the F, B, Y and K cars. The trucks all received the 4L60-E in 1993. Back then there were just LT1 and TBI engines.

[GMPX]

Thanks, I'll stop dreaming then.

[S10Wildside]

GM has different part numbers for the GTO, Corvette, etc. TCM. So I wasn't sure if there really is different hardware involved. I was unable to retrieve the calibration out of the new 2005 TCM using the latest (or previous) version of EFILive, so I think the TCM must be reflashed to begin with.

[Chuck CoW]

I have a brand new 2005 Corvette TCM and had assumed I could put any TCM calibration into it. What is preventing EFILive from updating the operating system and doing a full reflash? Are there different hardware versions of the T42? Can a Tech2 put a new operating system and calibration into the T42?

Hey Ross.... I've asked before...In fact, today I tried to take one of my spare T42's and prepare it with a different O/S to mail out and it still won't let me....

Will there be a time when I can do a FULL WRITE ion a T42???

Yes, we can use the tech II.... But, it's a real sucky pain in the ass....

Any thoughts?
Chuck CoW

[John Skiba]

Well Ross, you know how I feel about this one. Count me in for T42 full reflash.

[Chuck CoW]

Well Ross, you know how I feel about this one. Count me in for T42 full reflash.

Chuck CoW

[dc_justin]

+1. Ross informed me that he was close, just needed to work through a few things. Apparently they are a bit more finnicky and when one fails it fails bad.

[Low03noma]

+2!