[SRT Engineers]

Originally Posted by Malu59RT

Regarding the 2008 Viper

Is there any way to increase the throttle response in the DBW? If you have ever driven a E46 M3, there is a "sport" button that makes throttle tip-in very sensitive, and I'm hoping there is a way to do that in the 2008 (optional flash).

Also, regarding the recent RRT that was released to take care of the CEL: What effect have you experienced on vehicles that did not have this problem, and had the RRT performed? The dealer performed this against my wishes, and the car feels LESS responsive afterwards. My car performed great and felt strong before, not so much now.

SRT, thanks so much for this car! I've been wanting one for 16 years, and finally have one to enjoy.

Jason

Jason -

The recent RRT was necessary to address an issue that came up after we were well into production relative to misfire detection. We started seeing cranks in production that fell outside of the “normal” range we had used for testing and development, specifically the crank position target wheel. These targets were not bad or out of specification, they just had a much different characteristic for these notches than we had calibrated for. As a result a false misfire code (P0300) was set and limited the engine speed to 2500 rpm and shut down the cylinders that the system interpreted as misfiring. The misfire calibration was adjusted to compensate for this variation and that cal was released in the RRT reflash. There we also a few other minor calibration changes made at this time but nothing that would change the drivability or the throttle response of the engine (regardless of the crankshaft) – this cal change would be transparent to the operator. If the car feels less (or more for that matter) responsive it would not be due to the reflash, period.

On a side note, there have been some problems at the dealers with the reflash and on occasion the flash can fail rendering the module inoperative. The dealer does not have the tools necessary to resurrect the module and we have been working with the dealers to get the modules back to engineering in these rare cases where we reflash and return them. Again, no damage actually occurs to the module and they will work as good as ever once returned.