Quote:
Originally Posted by OHIOSS
I've already had all of that stuff done, headers, cutouts, professional tune, and 3.91 gear set. If I buy one of these after market tuners will it screw up the professional tune that I have already had done?? Or is there some kind of an app in the software that I can JUST change the speedo?
I never thought about the extra miles showing on the car until Scott just posted that. I would be even more pissed off if I had to wait that long and the odometer showing more miles than you actually drove.
I told both dealers that the 3.91 IS SUPPORTED BY GM in the 1LE Camaro so I am at a total loss why they keep telling me it's a gear set ratio that GM has never supported. Hell they are genuine GM gears that I purchased!
|
Your shop's tuner should be able to do this for you using the same aftermarket tuning software (HP Tuners, EFI Live, SCT, etc) he used to tune your car the first time. For me it was as simple as my guy going to the table in the software that had the input field for final gear ratio and over typing 3.45 with 3.91 and then uploading the change to the car's ECM via the port under the dash. It took 5 minutes.
GM will not let dealers use aftermarket tuning software so it's become a big,slow deal for GM to create the needed re-calibration to flash into the ECU.