Quote Originally Posted by mechguy View Post
I have the same knock/gutless problem, and similar mods. I have DTC P0134 (front 02 no activity) which is hopefully the cause. Thats probably a result of extending the 02 harness.

Will be fixing this when my life allows me.

I feel its still safe to drive without boost, with the SC belt on.
Yeah, that might be the problem... come to think of it I get a random P0133 every once in awhile....