Diablosport Forums

I got a Pontiac G8 GT with the trinity,... I would like to get the speedlimiter off of the car, but cant seem to get it removed.... Stops at 138.... I attached the original tune and the last tune written,.. Thanks

Give this one a shot and let us know.

Thanks, this weekend should be able to get a speed run in, let cha know.

Still shuts down at the same speed,...

I have same issue with my '08 G8-GT ... I have DiablewTune custum tunings n it never stopped it from cutting out at 138 mph .. I've since concluded it cant be done since Lew cudnt get it to stop cuttin out with the Custom Diablewtunes... Which by the way if u havent yet it is the best $125 i spent on my GT since purchasing the initial Trinity programmer.. His tunes will wake that 6.0 like nuttin u've seen yet .. Promise u that ... BIG DADDY

Hmm, 138, it is possible it might be using this other limiter then, try the attached file for that here, Australian calibrations are a little odd.

I agree with you BIGDADDY1969 the diablew tune was a awesome add for my GT.... The car is parked for the winter now but come spring time I'll let cha know if it works. Thanks Again

I updated and installed the tune and car runs fine,no extra dash lights everything is fine with that, havent driven the car yet and wont be till spring,... But I was reading about all the transmission tuning so was going to just take a look at the modify tune section on the tool to see what was there,.... and its giving me a Original Back up tune corrupt, can not tune vehical, message,... I have several copys of the original tune, that I've went back to on several times before up dating the tool and have had no problems, on my laptop,... soo whats to be done here?

its a bug, give us a call with the tool powered up inthe car and we can get it to restore easily