Not sure If I have Knock sensor. Can you cue me into where to look?

I have the stock boost control diaphram.

On the left side (when looking at the pulley end) screwed into the block behind the oil pressure sensor or on the right side near where the AC compressor would normally sit. One wire. It'll be round and brass in color if it'* not dirty. They moved it between those two positions.

Is anything connected to the lower port of the diaphram? In stock form, there is a vacuum line there that goes to a little black box called the boost control solenoid the the PCM can use to dump boost in cases of bad KR.

The vacuum line is plugged. Why?

Basically if you run too much boost you run the risk destroying the engine, it can happen fairly quickly as well. Your fuel system needs to be up over par and you already have the exhaust figured out...open headers? overkill for sure.

In your case you will not know when you are running "too much" boost unless you can hear it start knocking. Once it starts knocking it can get bad qucik.


but then again you say you are running 100octane?

With the fuel you run in it being constantly higher octane and the exhaust setup/ oh and the weight of your "car", etc....it may very well be possible to go smaller than 2.2" but I would not be the one to make that call.

Un plug it. It'* designed to operate normally with that port open to atmospheric pressure. Instead, fashion a little foam filter to put on it.