Stock 2004 Corvette Auto tune

[-Siggi-]

Does anyone know where I can find one ?
Holden Crazy only has one for a manual.

I am using a PCM from a 04 manual Corvette and I need to convert it to auto.
The 03 Corvette is a 512k file so I can´t use that one.

[joecar]

Hi Siggi welcome to the forum.

In the meantime, would the 2004 Pontiac GTO file work...? [I don't know myself]

[Taz]

Hello Siggi,

Is this for custom vehicle / swap application or for an actual 2004 Corvette ?

If it’s for an actual 2004 Corvette - then an original 2004 Corvette LS1 4L60 (A4) tune would be best - I don’t have one on file.

If it’s for a swap, you have several options. The 2004 Corvette manual tune you have is probably using OS 12587603. This OS was very common and was used in 2004 Avalanche / Corvette / Escalade / Express / S10 / Sierra / Silverado / SSR / Tahoe / Yukon.

This would allow for a segment swap - from the current manual transmission to a 4L60 or 4L80 automatic transmission.


Regards,
Taz

[-Siggi-]

Thanks for the reply.

This is a swap for a customer, it is a Grand Cherokee ZJ with a 04 Corvette LS1 and a 4l60 from a Camaro.

It is not the 12587603 os , it is 12592425 witch I can only find in a Z06 and LS1 M6 Corvette.

I had found out about the GTO file and have been modifying it and will try it tomorrow.
But it would have been easier if I could find a Vette file.

[Taz]

OK now I understand … you have a 2004 LS6 (Z06) … OS 12592425 is unique to the LS6 in that year. The 2004 GTO tune may work - it is setup for DBC, the Corvette tune is setup for DBW.


Regards,
Taz

[gmperformancecentre]

this may help you out

[Sid447]

Does anyone know where I can find one ?
Holden Crazy only has one for a manual.
I am using a PCM from a 04 manual Corvette and I need to convert it to auto.
The 03 Corvette is a 512k file so I can´t use that one.

Holdencrazy has an '04 Vette LS1-A4 tune file (the one attached above ^^). It is one I sent some years ago and can personally guarantee it is 100% stock & un-altered in any way. :)

[-Siggi-]

Thanks for the link. How could I not find this file?

I tried the GTO tune but it cannot communicate with the Corvette cluster that I am using.

Now I have the A4 vette tune and all is good.