so my check engine light blinked on my way to work, it kept blinking then stayed on. i checked the code in the actron reader and it showed p1314. which means cylinder 4 missfire, i changed the spark plug in 2 4 6 cylinders (just cause i had the air filter box off) reset the code but it still feeels like its missfiring, so not it reads inside on the dash "cruise not available gearbox fault" plus a new code p1000 does anyone have any idea what to do. i did some research on the gearbox fault code and it says to bring it to the dealer the reset the j-gate relay .