ECU swap issues

[bin_ajail]

Well, I change my old Ecu, with a new ecu. (Old one locked) with anther model. I have GMC truck Silverado & I make replacement with Holden Commodore 2002 I take it from junk, I make all changed and gone fine just 4 things. A/C not works at all, fuel gauge not work, battery light not close well battery gauge good read, speedometer move but run quickly.

[Bill@HPTuners]

Its because a truck requires a completely different operating system, insert the proper operating system and you'll be better able to tell if you have any other issues.

[jimmyblue]

In 2002 the trucks and F-body used the same hardware, do not
know about the Commodore Holden though. You need to cross
reference these platforms and see. If the hardware is different
then the platform interface may be as well, wrong connector
assignments are possible and so on. If the Holden PCM is the
same type then writing a truck tune and VIN entire may bring
it around. Do not know if you have to change the VIN first, it
might be a good idea, some fussiness about VIN/OS match and
having a Holden VIN may prevent you from writing the truck
OS. I'd check into this, order of operations etc.

[bin_ajail]

Its because a truck requires a completely different operating system, insert the proper operating system and you'll be better able to tell if you have any other issues.

I use 6.0L operating system for that truck, i forget to tell that i swap the eninge to 6.0L ( I use all 6.0L file in that truck) & befor 5.3L

[bin_ajail]

In 2002 the trucks and F-body used the same hardware, do not
know about the Commodore Holden though. You need to cross
reference these platforms and see. If the hardware is different
then the platform interface may be as well, wrong connector
assignments are possible and so on. If the Holden PCM is the
same type then writing a truck tune and VIN entire may bring
it around. Do not know if you have to change the VIN first, it
might be a good idea, some fussiness about VIN/OS match and
having a Holden VIN may prevent you from writing the truck
OS. I'd check into this, order of operations etc.

The first thing what I do that step (changed the VIN), then I open VATS after I changed all hardware (file from 5.7L ls1 to 6.0L) is not matter, but what I think her is the wires in pcm is different must changed place I now that before the A/C signals get from wire #17 but want to check in these pcm also.

[bin_ajail]

If I can get the signal for the 2 pcm I can do it (I mean the wire diagram with run a/c by the services number) fuel & ather thing i think must check Ohms.

[Arron]

Is the tune that you are using the one in this post ?

If so it is the Holden operating system .

[bin_ajail]

Is the tune that you are using the one in this post ?

If so it is the Holden operating system .

No , this Holden operating system what I make I use only Holden ECU with 6.0L operating system just for the motor mate .( ever thing is fine just what I mention : A/C not work ,fuel gauge not work , speedometers not correct ,battery light on but is good )