mackerman22
06-01-2010, 08:11 AM
I installed a Yella Terra tube and a K&N filter 2 weeks ago. Since then the mpg and dte computer is way off. It is now showing around 15mpg, but previously with the factory parts the computer was showing around 21 mpg. Do I need some type of tune to calibrate the computer? Have I messed up the computer? Will disconnecting the battery fix it? Any help would be greatly appreciated!