comodore 2007 speed limit

[ALRAJHI]

hello guys
I am trying to increase the speed limt of 2007 comodore from 255km to 300km with no help, I tested the car but it still wont go past 243km?
please help me guys with your ideas.

[ALRAJHI]

hi guys
anybody find info regarding my problem

[2002_z28_six_speed]

I don't know if you can make the speed limit higher unless you disconnect the VSS completely which is not really recommended and illegal.

http://forum.efilive.com/showthread.php?t=3168
Here is a thread about monitoring the speed over 255 KPH.

Maybe you could disable VSS and just watch the trans output speed? Wish I could help. :(

[GMPX]

Set H0156 to 'ECM'
Then increase H0129, H0157 & H0158 to your desired limit speeds.

Cheers,
Ross

[ALRAJHI]

Set H0156 to 'ECM'
Then increase H0129, H0157 & H0158 to your desired limit speeds.

Cheers,
Ross

Hi Ross
thank you for repling to me.
H0156 and H0129 has been done but H0157 And H0158 is not found!
any idea?regards

[GMPX]

Probably need to update your cal files.
Details on that are in the thread here -
http://forum.efilive.com/showthread.php?t=5540

Cheers,
Ross

[ALRAJHI]

thank you guys for helping me