[gmacoo7]

with or with or without the stock tune or diablo. my 06 300c srt8 will run to 5000 rpm and go into a limp mode. I have to pull off the rode turn the engine off and restart it. it pops code P-2101. dealer had it in today didnt fix it, but performed tsb-18-031-05. please help, I am going crazy

 

[MrHappy]

P2101 - Electronic Throttle Control Motor Performance

Set your car back to stock (remove the diablo) and try popping the fuse if you have a CEL on. Worth a shot if it's not a failed equipment issue.