i'm using r33 gtr injectors which were cleaned and flowed before install.
I'm still having the spiking knock reading with lighter throttle and and when coming off boost sometimes....not as much...
What kind of BOV are you guys using.......plumb back or atmo venting. I'm using a stock BOV so could it be the extra air venting back making a difference??
I've got lifter noise on the exhaust side too, i've replaced all my exhaust manifold studs too about a year ago. I've found one is missing again.
i've got some new tomei cams sitting here waiting to go in but i want to fix this problem before i start the next mod.
I cant be bothered going back to a workshop since the last two i've seen have wasted my time and money.