do i need a tune or what ????
also sometimes when i shift or rev the motor up, it will backfire. not crazy loud but i can definatly hear it, and this is only sometimes.
i heard to check the balancer and check my knock sensors too.
i just check 1 plug and it looks fine...maybe a tad lean but not bad.
i just wanted to know if the vibrations could be from knock sensors or what?
hopefully thats all i need is a tune to get the vibrations gone.





