Recently brought my car to get tuned, all went great other than having him set up launch control and the flex fuel sensor wasn't being picked up. There isn't a ton of documentation on setting up launch control with the mslabs unit, same system for a normal ms3? For the flex fuel, he said the 3 options on the drop down tab didn't register anything. Sensor in wired into pin26, 12v+, and grounded. Any help is appreciated.

 

"Flex In" on pin 26. If that doesn't work, you have an old (7+ years old) version that doesn't have a flex fuel input. Anything 2016 or newer will have flex fuel on pin 26 by default. All units have launch control on the stock clutch input pin, input "Launch In".