so today i finally put my two bros slip on, and juice box on the bike. i did everything as the instructions said, but after starting the bike for the first time,
the yellow check engine light keeps coming on? i took it out today for the first time in 3 months for about 3 miles, and the engine light hasnt disappered, someone told me its the servo, but i took it of as well as the long cable,i havnt uploaded any maps to the two bros juice box, does anybody know what happened?.

 

Plug the servo motor back in and re-install it. Leave the cable off. The ECU is looking for the signal for the servo and not getting one...hence the check engine light.