Originally Posted by
WhiteFwdsm
What logger software are you using?
Check your knock sensor. It's located on the back of the block underneath the intake manifold. Have you ever replaced it? It might be bad. They do go bad... how many miles on the car? Feel the backside of it... if it sticky or part of the backing is missing you need to replace it.
he has replaced it, i think its knock from his lifters personally. on tbdsm people gave him some tips on what to do