reading 0 knock???

[clipise]

i within the last week i have had my S-AFC 2 in my car. im reading 0 knock all the time. is this normal? i heard it was and then my friend said i should have at least 1 -3 counts. is something wrong? also, starting yesterday my car is running like shit. it only boosts 7-10 psi. i have a boost controller and before it was at 15 psi. i have 625cc injectors and they are leaned out alot. what u think about this problem?

sorry if this doesnt make sense, im very tired.

any more info u need to help me figure out my problem, please ask.

 

[kpt4321]

The boost problem is a totally different issue, probably mechanical.

You should tune for the onset of knock, which means you will periodically see a small knock sum. However, that doesn't mean your car will be like that. It totally depends on how it is tuned.