Stock Tune file request OS 12617631 E38 08 LS3 C6 M6

[[email protected]]

Looked everywhere including tune repository.

Im needing stock tune for 2008 Corvette LS3 6.2 E38 file with OS 12617631 from a manual transfer case vehicle.

If anyone has one can you please post !


Needing to try to overwrite a Negative response to failed ecm read !


Thank yall God Bless

[blindsquirrel]

Don't know how this could be used to fix your problem, and I sure hope you meant manual transmission instead of transfer case, but here you go:

2008 Corvette 1G1YY36W285102738 6.2L LS3 M6 1188609391.hpt

[[email protected]]

Thank you i really appreciate the file
Basically i was going to try to overwrite it with the tune file you provide it

Im new at this, is there any other way I could probably fix the negative response ?

By the way thank yo for your time
Wish you nothing but the best of luck on everything you do
Have a nice day

[gtstorey]

No way would I try over writing a failed read with a repository file. You need to figure out why you original file failed to read. Maybe it is tuner locked.

If you get to the point that you have to write a new file, I would do it outside of HPT.

[blindsquirrel]

Is your ECM the correct service number for the calibration?

Gen 4s really should have the whole OS programmed using GM SPS and the appropriate tools (Tech2/MDI/J2534/etc.). HP Tuners does not write all segments.

[[email protected]]

Im a Bit lost on what to do because i have never been able to tune my corvette and have tried with diablo sport handheld, and sct handheld and none of them worked.

Weird thing is my car is a 2005 Corvette Ls2 Manual trans vin 1G1YY24U555101994

But reads as 2008 Corvette Ls3 Manual Trans vin 1G1YY25W285100483

Tried to bench read it and it also failed smh

thanks for the replies and suggestions its much apreciate it

[blindsquirrel]

2005 & 2008 are completely different ECMs, '05 should be an E40, '08 is an E38. There is no way, not even a wrong way, to put a E38 file into a E40 or vice versa. It just will not work. Has the VIN been changed in the ECM, maybe? With the actual E40 calibration still there? Why would somebody do that?

[[email protected]]

Im more confuse now from what your saying about the mismatch of ECMs smh
I Dont know why they put a E38 ECM instead of the E40
but honestly thats what it has
sorry for the delay just could not get the images attached to reply
Above the images

Mexico is something not really cordinated
I Bought the car 5 years ago and installed long tubes thats all 
it runs good btw just want it to get better
thanks 4 the help

[blindsquirrel]

Then it must have had the entire harness swapped.

Another thing, it's had the engine swapped too, since E40 only works with 24x crank reluctors and E38 only works with 58x reluctors.

[[email protected]]

Thank for the orientation blindsquirrel
and the time is much apreciate it

below are pictures of the car and the engine

I was planing to try to write calibration on the ecm but have not tried it
I dont want to have a no start

How do you suggest i back it up and or bypass negative response ?
,because it does go up to 100% Before that ,Then fails

i have a silverado 2008 Same ECM and it lets me save and write also when i change vin to the corvette vin it accepts it
Does this mean its compatible can i buy a truck ecm ?

Have Great day blindsquirrel

[blindsquirrel]

Any ECM with the same Service Number will interchange (after programming, with SPS) with any other ECM of the same Service Number. As long as the Service Number is the correct one for the application (calibration) you want to put on it. Best to always look it up by the VIN you want to program it as, before buying or programming anything. gmpartsdirect.com has a nifty search-by-VIN box right on their main page - there are other clone GM parts sites with the same format but that's the one I use just out of habit.

A 2005 24x LS2 is externally identical to a 2006(-up) 58x LS2, everything except the color of the crank position sensor - black for 24x, gray for 58x.