saw you guys at the j-body bash but you were leaving as i was pulling in friday night. was dissapointed i didnt get to talk to u about the ss. im hoping that auto tune comes out soon. yell if u need a test mule.

 

ok, maybe this has been answered many times, but I must ask.


With the tuner for the SS, cant you set the car back to stock anytime you want? If so would a gm tech even know that a tune was installed and then removed? If so how would they know? If not why would installing the tune "void" your warranty since you could just remove it before taking the car in for service?

SPPD

 

I believe they use something like an MD5 hash number to validate the factory programming, and non-GM flash changes the hash number, which then serves as a red flag they can check for when looking at the ECM programming. So you could flash the factory tune back into the ECM but they could still detect that a non-GM program had been flashed prior.

 

so many different twist to this. who knows. i heard if your car was flashed by the dealer more than once,they can't tell if it was flashed or not. the records will show it was flashed already by a dealer. i really don't know.

 

I have the BSR tune in my SS and I also have the tune in my 07 GXP for over a year with no problems at all. I don't understand why some people are so worried about GM finding out if there ECM has been reflashed or not. I bought the tune to make my cars perform better and I am not going to worry if GM finds out or not. It will only be a problem if I should blow up one of the motors and they can prove that the car had been reflashed and that was what caused the motor to blow If that happens and they won't fix the motor then I guess I would have to pay the bill and build a lot bigger one. I don't think if you have the tune and take your car in for an oil change that they are going to check to see if your ECM has been reflashed. What I am trying to say is if you want more power than tune your car and take it out and enjoy it. I don't know of anyone that has had one of these LNF motors blow up yet and the boys on the Solstice forums have been running them very hard for almost 2 years. I beleive there is a lot more power to be made with an LNF 2.0 and it will take it, so a proven tune isn't going to hurt it.

 

The Tech II scanner will pick up the last 10 reprogramming events. All GM programs have a part number. It is easy to see a non GM calibration. If a dealer finds a non-GM program was ever in the ECM we email a snap-shot to GM and they decide if they are going to void the powertrain warranty. ECM's will have 1 flash from the factory. Any flashes afterwards will have records stored on the GMVIS web site.

Also reflashing an ECM with the same program will never fix anything and is discouraged by GM Technical. So if a dealer attempted to reflash using the same program/part number he was spinning his wheels.