Ok....tuning a truck for a guy tonight and its a 2007 NNBS 5.3L Reg. cab 2wd. He just put 4.10 gears in it so I verified the speedo is accurate with it recalibrated to 4.10 gears courtesy of a road take your speed display. However, I disabled the speed limiter at 6300 rpms and 310 mph to not engage. However, it is still kicking on at 100 mph roughly at 4500 rpms at WOT and falling on its face. Is there a problem here that I am not aware of. I was using HP Tuners software in the beta version.

Thanks.

Link to my file:
http://www.hptuners.com/forum/showthread.php?t=26583

 

Don't have pc with efilive in front of me but thinking you should change speed limiter by throttle to Yes and disable fuel and spark. There may be something like speed limited by ECM too.
Good Luck

 

"Unable to open file. Index was outside the bounds of the array"


What is that? I never saw that before when trying to view a tune.

 

same issue here.

 

Don't know....however, I have the solution.

Apparently you have you write in calibration instead of GMLAN in the speed limiter setting. So, didn't know about that. First NNBS I've tuned for a friend so....new computers comes new learning curves.

Thanks for looking everyone!

 

Yep you've got it. I think that it might even be a sticky over on hptuners forum.

 

You are getting that message more than likely because he is using a beta version that you aren't using.

 

Yea...I was looking for something like that but couldn't find it last night of course....never have enough time when the owner of the vehicle is standing there waiting.