Originally Posted by 2000SilverBullet
Guess you'll have to swap out the cam next......
......then back to the Gen3....
I own a tuner and am scanning to determine the problem. If this issue is a part on the car or part of a tune it will be found and fixed. Since I ran the 104 octane and still had the KR while in vacuum not boost..most would consider this to be false knock. False knock woouldn't be cam or gen V related.
Next steps are to run without the SC belt to ensure it'* nothing in that system, although since it'* happening under vacuum there isn't an expected solution there. Merely ruling out another item.
Double checking exhaust etc for clearance and sealing.
Replacing the wiring to the rear knock sensor from the closest connector. (There is a short piece that connects from the sensor to another connector behind the transmission).
Adding the false knock Dynamat on the knock sensors.
Each item will be done one at a time to determine the actual fix of the issue. Going at this with a vengance to get the problems solved and move on to tuning and securing a new spot in the fastest bonnie listing.